Bolthole Index

McClain County, Oklahoma

Building permits, zoning and septic rules in McClain County, Oklahoma

43Index Score / 100
#69 of 77 in Oklahoma

Unincorporated McClain County, Oklahoma has no county zoning, and the county's published materials do not establish a general residential building permit; the permits it does publish cover floodplain development, road connections and road crossings.12 Blanchard, Newcastle, Purcell and Washington have zoning of their own, and Blanchard also issues building permits and inspections.34567 Septic permits, called an Authorization to Construct, come from Oklahoma DEQ statewide, not from the county or a city.8

At a glance

Building permit
County materials establish floodplain, road-connection and road-crossing processes, but not a general residential permit process92
Zoning
None in unincorporated McClain County; Blanchard, Newcastle, Purcell and Washington have their own zoning13456
Septic permits
Oklahoma DEQ's Environmental Complaints & Local Services (ECLS) division statewide; an Authorization to Construct is required before any new or modified system10118
RV / tiny home living
Unrestricted under county rules, since unincorporated McClain County has no zoning ordinance12
Minimum lot size
No county-zoning minimum; DEQ approval is required to record an outside-city residential plat with a lot under 2.5 acres1314
Owner-builder
A state county-code exemption covers a single-family residence on a separately owned parcel of at least 20 acres, but its practical effect here is unclear15
Agricultural exemption
Usual farm buildings used for agriculture are outside county zoning authority; floodplain, septic and access rules can still apply1617
Domestic well permit
Not required for household use, grazing livestock, up to 3 acres of irrigation, or 5 acre-feet a year of other non-household use1819

Who to call

Floodplain permits

McClain County Floodplain Administrator

Floodplain development permits for unincorporated McClain County; questions go to the Floodplain Administrator at permits@mcclaincountyok.gov per the county's floodplain application instructions

Roads & driveways

McClain County Board of Commissioners

Road-crossing permits for development in unincorporated McClain County; applications go before the Board of Commissioners for approval

Septic permits

Oklahoma DEQ Environmental Complaints & Local Services (ECLS)

On-site sewage treatment (septic) permitting statewide, including soil tests, system design review, installation inspection and installer/profiler/pumper certification, through locally based environmental specialists

405-702-6100

707 N Robinson, Oklahoma City, OK 73102

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Off-grid gear

Going off-grid in McClain County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in McClain County, Oklahoma?

McClain County publishes permit processes for floodplain development in unincorporated areas, new or modified drives connecting to county roads, and road crossings2. The available county materials do not establish a general residential building-permit process, so ask the Floodplain Administrator about the parcel and project rather than treating silence as an exemption920. Oklahoma does not require a State Fire Marshal permit for a single-family home, duplex, barn, shed or attached carport in an unincorporated county area, but that state exemption does not cancel applicable local requirements21. A county floodplain development permit is required where the county floodplain program applies22. Inside incorporated places, building permits come from the municipality instead: Blanchard has adopted the international building codes and conducts building permits and inspections7. The county's floodplain, road and DEQ septic requirements still apply to land in or near a city6. For Newcastle and Purcell we could not confirm who issues building permits, so ask the city office before relying on the county answer45.

Who handles floodplain and road permits in McClain County?

For development covered by the county floodplain program, use the McClain County Floodplain Administrator; the application requires the development's latitude and longitude2320. A new or modified drive attaching to a county road uses the county's Road Connection Application2. A road crossing requires a completed, signed and notarized application, a detailed work-area map, a certificate of insurance and a $1,000 check per permit made payable to the McClain County Board of Commissioners; the Board of Commissioners considers the application after the materials are verified2425. A driveway connecting to a state highway instead requires an Oklahoma DOT Driveway Agreement, and work in the right-of-way cannot begin until the approved agreement is returned26.

Does McClain County have zoning?

Unincorporated McClain County has no county zoning1. As a result, county zoning sets no minimum dwelling size, minimum lot size, setback, lot-coverage limit or building-height cap there2713282930. Municipal rules vary: Blanchard, Newcastle and Purcell have their own zoning, as does Washington, while Byars does not, so confirm whether the parcel lies inside a city or town before relying on the unincorporated-area answer3456. Usual farm buildings used for agricultural purposes and the planning of crops are outside Oklahoma county zoning authority, but that exemption does not answer floodplain, septic, access or subdivision requirements16. The statute behind county zoning powers adds forestry activities to that exemption, though the research did not establish that McClain County administers zoning under it17. Residential developments outside city or town limits remain subject to state plat review even though McClain County lacks zoning14.

How do septic permits work in McClain County?

Septic permits in McClain County come from Oklahoma DEQ, not the county or a city; DEQ's Environmental Complaints & Local Services division handles soil tests, system designs, installation inspections and oversight of certified installers through local environmental specialists1131. Before a new system is installed or an existing system is modified, DEQ must issue an Authorization to Construct8. The published application lists a $357.28 DEQ-augered soil test, a $214.36 soil test when the applicant supplies pits, and a $285.80 plan-review fee for an alternative system32. Only 28% of McClain County soils are rated without severe limits for a conventional drain field, so settle the septic design before choosing a house site33. Every new or modified system must be inspected and approved by DEQ, or installed, self-inspected and approved by a certified installer, before it is placed into operation34. A non-certified person may install only one on-site system per calendar year beginning November 1, 202532.

Can you live in an RV or tiny home on your land in McClain County?

County zoning does not restrict RV occupancy, tiny-home occupancy, manufactured-home occupancy or temporary camping on land in unincorporated McClain County12. That answer is limited to county zoning: a floodplain development permit may still apply, septic approval still comes from DEQ, and incorporated cities and towns can have different rules22356. Oklahoma treats an occupied manufactured home as a permanent installation and requires installation under the applicable HUD standards or approved manufacturer instructions; the installer must be properly licensed36. We could not confirm whether McClain County requires a certificate of occupancy or performs building inspections outside its published permit processes, so ask the Floodplain Administrator before placing or occupying a structure920.

Building a home in McClain County: the steps, in order

  1. Confirm whether the parcel is unincorporated or inside a municipality, because municipal zoning and building rules vary6.
  1. Ask the Floodplain Administrator whether the project enters the county floodplain process; covered applications require the development's latitude and longitude2320.
  1. If a drive will attach to a county road, use the Road Connection Application; if work crosses a county road, follow the separate road-crossing process225.
  1. Arrange the septic evaluation and obtain DEQ's Authorization to Construct before installing or modifying a system3231.
  1. Confirm that any domestic well use fits the state exemption; qualifying household and limited irrigation uses do not require a groundwater-use permit18.
  1. If you will file a plat at the courthouse, have it reviewed first by the McClain County 9-1-1 Trust Authority, which can take up to ten business days37.
  1. Before construction, ask the Floodplain Administrator whether any county inspection or occupancy step applies, because we could not confirm those requirements920.

What to check before you buy land in McClain County

Confirm the jurisdiction first: unincorporated McClain County has no county zoning, but Blanchard and Washington have zoning programs, and municipal building rules can differ167. For a tract created through residential development outside a city or town, ask for the approved plat: it must describe water and sewage methods, and DEQ approval is required before recording, sale or construction14. A county clerk cannot record such a plat with a lot under 2.5 acres unless it carries DEQ's approval stamp14. Check the septic site early because only 28% of county soils are rated without severe limits for a conventional drain field33. Also verify floodplain status and legal road access before closing, since the county administers separate floodplain, road-connection and road-crossing processes2.

Watch-outs

  • We could not confirm whether McClain County requires a certificate of occupancy or building inspections outside its published permit processes, so ask the Floodplain Administrator before construction920.
  • Starting November 1, 2025, anyone who isn't a DEQ-certified installer may install only one on-site sewage system per calendar year, a limit worth knowing before you plan to do your own septic work32.

Sources

  1. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan, quoted and re-checked
  2. Permits and Applications | McClain County, quoted and re-checked
  3. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan, quoted and re-checked
  4. Newcastle: City of Newcastle - Zoning Designations (McClain County), quoted and re-checked
  5. Purcell: Purcell, OK Code of Ordinances - Overview (McClain County), quoted and re-checked
  6. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan, quoted and re-checked
  7. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan, quoted and re-checked
  8. On-Site Sewage Information, quoted and re-checked
  9. Permits and Applications | McClain County (2026 county census)
  10. Oklahoma DEQ - On-Site Sewage Treatment (2026 county census)
  11. Environmental Complaints & Local Services, quoted and re-checked
  12. Oklahoma law on county zoning and building authority
  13. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan 2021, quoted and re-checked
  14. Oklahoma Statutes, Title 27A, Section 2-6-403, quoted and re-checked
  15. Oklahoma Statutes - Title 19, quoted and re-checked
  16. FAQs - Counties and Townships Authority to Zone, Permit, and Approve Certain Wind, Solar, and Other Green Energy Construction Projects, quoted and re-checked
  17. Oklahoma Statutes, Title 19, Counties and County Officers, quoted and re-checked
  18. Water Use Permitting, quoted and re-checked
  19. Apply for a Water Permit (Oklahoma statewide rule), quoted and re-checked
  20. McClain County Floodplain Administrator (mcclain-co-ok.us)
  21. Oklahoma Statutes - Title 74, § 74-324.11 (Oklahoma statewide rule), quoted and re-checked
  22. Permits and Applications | McClain County, quoted and re-checked
  23. Permits and Applications | McClain County, quoted and re-checked
  24. Permits and Applications | McClain County, quoted and re-checked
  25. McClain County Board of Commissioners (mcclain-co-ok.us)
  26. Instructions for Driveway Permit Application (Oklahoma statewide rule), quoted and re-checked
  27. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan 2021, quoted and re-checked
  28. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan 2021, quoted and re-checked
  29. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan 2021, quoted and re-checked
  30. McClain County Multi-Jurisdictional Multi-Hazard Mitigation Plan 2021, quoted and re-checked
  31. Oklahoma DEQ Environmental Complaints & Local Services (ECLS) (oklahoma.gov)
  32. OK DEQ On-Site Service Request Form, quoted and re-checked
  33. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  34. On-Site Sewage Information, quoted and re-checked
  35. Oklahoma DEQ Water Quality Standards Implementation Plan Rules, quoted and re-checked
  36. Title 765 Oklahoma Used Motor Vehicle and Parts Commission Rules and Regulations (Oklahoma statewide rule), quoted and re-checked
  37. Plat Review – McClain County 9-1-1, quoted and re-checked

Written October 14, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

RuleMcClain CountyCleveland CountyGrady CountyPottawatomie CountyOklahoma CountyGarvin CountyCanadian County
Building permitLimitedNot requiredNot requiredLimitedRequiredLimitedLimited
County zoningNoNot publishedNoNot publishedYesNot publishedNo
Septic permitsOK DEQOK DEQOK DEQOK Dept. of Env. QualityOK DEQOK DEQOK DEQ

County locator

McClain County in Oklahoma

43
County map
McClain County highlighted among the Oklahoma counties · colored by Index score

How McClain County scores

Seclusion1528% ev.
Self-Sufficiency4899% ev.
Admin Boringness7290% ev.
Durability46100% ev.
Property Autonomy69100% ev.
Carry Cost79100% ev.

Evidence strength: 82%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$289kTypical home
0.8%Property tax
$3,806Land / acre
37.4"Annual rain
21.4% of yrsSevere drought
37.2 / yr (+23.6)Mid-century 100°F days
24.2 daysMid-century dry spell
2.17" (+5.1%)Mid-century 1-day rain
1.42×Wildfire change factor
100%Forward climate coverage
$2,899Home insurance / yr
-0.6% / yrInsurance growth
0.63%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
1,157,303People within 30 min
3,426,868People within 2 hr
540,939Radius comparison (15 mi)
82.5People / sq mi
0%Federal land
99.5%Land at 15% slope or less
28%Soils rated "not limited" for septic (strict USDA rating)
100,138 acWorkable land screen
26.2%Wooded land
12.5 tonsBiomass / forest ac
61.4°FAvg temp

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Cities and towns in McClain County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet researched: Blanchard · Town of Byars · Town of Cole · Town of Dibble · Town of Goldsby · Town of Maysville · Town of Rosedale · Town of Washington · Town of Wayne

Answers from the rulebook for McClain County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

McClain County rules

  • Building permitLimited

    Development in an unincorporated area of McClain County that is subject to the county floodplain program.

    • A McClain County floodplain permit is required for covered development.
    • The application requires the latitude and longitude of the development.
    • Applications or questions are sent to the Floodplain Administrator at permits@mcclaincountyok.gov.
    • This claim does not address building-permit requirements imposed by incorporated municipalities.
    “McClain County Floodplain Application for Permit to Develop In an Unincorporated area of McClain County (Floodplain Permit) – download PDF and send via email. It is required that you provide the latitude and longitude for your development on your permit application.”
  • County-wide zoningAbsent

    County zoning in McClain County's unincorporated areas.

    • The county plan separately states that floodplain permits are required in McClain County.
    • Municipal zoning may apply inside incorporated cities and towns.
    “McClain County does not have any zoning.”
  • Local zoningVaries (with conditions)

    Aggregate zoning status across McClain County: no county zoning is reported for unincorporated county areas, while some incorporated municipalities have zoning programs.

    • The county plan states that Blanchard has planning and zoning in place and that its zoning code is updated annually.
    • The county plan states that Washington has planning and zoning policies and subdivision and zoning regulations.
    • The county plan states that Byars has no zoning codes, while other municipalities may have different rules.
    • Municipal rules are administered by the respective city or town, not by McClain County.
    • Floodplain permits may still apply in county and municipal areas.
    “Blanchard has planning and zoning in place. [...] Washington has subdivision and zoning regulations in place.”
  • Zoning districts · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Minimum dwelling sizeNone

    Minimum dwelling-size requirements that would exist only under county zoning in unincorporated McClain County.

    • This absence finding concerns county zoning only; incorporated municipalities may administer their own land-use or building rules.
    • Other non-zoning requirements, including floodplain requirements, may still apply.
    “Planning and/or Zoning Board: McClain County does not have any zoning. Zoning Code: McClain County has no Zoning Code.”
  • Minimum lot sizeNone

    Minimum lot-size requirements that would exist only under county zoning in unincorporated McClain County.

    • This absence finding concerns county zoning only; incorporated municipalities may administer their own subdivision or land-use rules.
    • Other non-zoning subdivision or recording requirements were not established by the cited source.
    “Planning and/or Zoning Board: McClain County does not have any zoning. Zoning Code: McClain County has no Zoning Code.”
  • SetbacksNone

    County-zoning setbacks in unincorporated McClain County.

    • This absence finding concerns county zoning only; incorporated municipalities and non-zoning programs may impose separate requirements.
    “Planning and/or Zoning Board: McClain County does not have any zoning. Zoning Code: McClain County has no Zoning Code.”
  • Lot coverageNone

    County-zoning lot-coverage limits in unincorporated McClain County.

    • This absence finding concerns county zoning only; incorporated municipalities and non-zoning programs may impose separate requirements.
    “Planning and/or Zoning Board: McClain County does not have any zoning. Zoning Code: McClain County has no Zoning Code.”
  • Building heightNone

    County-zoning building-height limits in unincorporated McClain County.

    • This absence finding concerns county zoning only; incorporated municipalities and non-zoning programs may impose separate requirements.
    “Planning and/or Zoning Board: McClain County does not have any zoning. Zoning Code: McClain County has no Zoning Code.”
  • Living in an RV · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Camping on your land · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Tiny homes · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Manufactured homes · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Accessory dwellings · by state lawNo county rule

    Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning.

    • Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits.
    • The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning power is limited to unincorporated areas of the county.
    “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
  • Agricultural exemptionConditional

    The county zoning power described in 19 O.S. §19-866.16 for areas of McClain County outside municipal territorial jurisdiction.

    • The exemption applies only to the zoning power conferred by this statutory act; the research did not establish that McClain County has adopted or administers zoning under this act.
    • The exemption covers the erection or use of usual farm buildings for agricultural purposes, the planting of agricultural crops, and forestry activities.
    • Forestry activity includes reforesting, growing, managing, protecting, and harvesting timber, wood, and forest products, including forestry buildings and structures.
    • The forestry exemption does not pertain to areas or property that would restrict access to public road construction or right-of-way.
    • This claim does not establish a statewide exemption from every Oklahoma county planning or zoning authority, and other state, county, municipal, floodplain, road, septic, or environmental requirements may still apply.
    “The zoning power hereby conferred shall not apply to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or forestry activities.”
  • Subdividing landRegulated (with conditions)

    Residential developments and subdivisions outside the corporate limits of cities or towns in McClain County.

    • A plat describing water-supply and sewage-treatment methods must be filed with the Oklahoma Department of Environmental Quality.
    • DEQ approval must be obtained before recording the plat, offering lots for sale, or beginning construction.
    • The plat must include water and sewage-treatment information, actual lot sizes, and the location of public-water-supply sources within 300 feet.
    • DEQ approval becomes effective 30 days after filing unless specifically rejected earlier.
    • A county clerk may not record a plat containing a lot smaller than 2.5 acres outside municipal limits unless it bears DEQ's approved stamp.
    • DEQ must approve individual-residence tracts when no tract is smaller than 2.5 acres, provided no lot is within 300 feet of a public-water-supply source.
    • After approval, the plat must be filed in the county land records.
    • Knowingly proceeding without required approval or filing is a misdemeanor punishable by a fine of $500 to $5,000 per violation.

    minimum lot size: >= 2.5 acres (DEQ approval is required for plats containing smaller lots outside municipal limits) · public water supply separation: >= 300 feet (No lot may be within 300 feet for the mandatory approval provision) · DEQ approval effective period: 30 days (Approval is effective 30 days after filing unless specifically rejected earlier) · violation fine: $500-$5,000 USD per violation (Misdemeanor conviction)

    “The office of county clerk shall not record a plat containing any lot of less than two and one-half (2 1/2) acres situated outside the corporate limits of a municipality unless said instrument bears the "approved" stamp of the Department.”
    One more reviewed finding on this topic
    • Limited — Plats filed at the McClain County courthouse and developments requiring plat review in McClain County.
      “Those wanting to file a plat at the county courthouse must get their plat reviewed by the McClain County 9-1-1 Trust Authority. Property owners or developers requiring a plat review should email over a digital copy and contact our office to schedule a time to get their plat signed. It may take our office up to ten (10) business days to review any documents.”
  • Building in a floodplainRequired

    Development in an unincorporated area of McClain County that is subject to the county floodplain program.

    • A McClain County Floodplain Permit application is required.
    • The application must include latitude and longitude for the development and for the home or primary structure.
    • Applications or questions must be sent to the Floodplain Administrator at permits@mcclaincountyok.gov.
    • The county page advises that a registered surveyor or hydrologist may be useful for calculating base flood elevations, but does not state that either is categorically required.
    • The page references Floodplain Regulations updated 2020; no effective date for the regulations was stated on the page.
    “A Development Permit shall be required to ensure conformance with the provisions of these floodplain management regulations.”
  • Permit feesPublished (with conditions)

    McClain County road-crossing permits for development in unincorporated McClain County.

    • The application must be filled out, signed, and notarized.
    • A detailed map showing where the work will be done must be included.
    • A Certificate of Insurance must be attached to each permit.
    • A check for $1,000.00 for each permit must be made payable to the McClain County Board of Commissioners.
    • After receipt and verification of the check and required information, the application goes before the Board of Commissioners at its next meeting; if approved, a copy is emailed to the applicant.

    road-crossing permit fee: 1000 USD (for each permit)

    “A check in the amount of $1,000.00 (for each permit)”
  • Permit processPublished (with conditions)

    County-administered floodplain, road-connection, and road-crossing permit processes in McClain County; the floodplain application is expressly for development in an unincorporated area.

    • Floodplain development in an unincorporated area requires the county floodplain permit process and requires latitude and longitude for the development.
    • A development requiring creation or modification of a drive attaching to a county road requires the Road Connection Application.
    • For a Road Crossing Application, all pertinent information must be completed, signed, and notarized; a detailed map showing the work area and a Certificate of Insurance must be attached to each permit.
    • The Road Crossing Application requires a $1,000.00 check for each permit payable to the McClain County Board of Commissioners.
    • Completed road-crossing materials may be mailed to McClain County, P.O. Box 629, Purcell, OK 73080, or dropped off at the McClain County Courthouse, County Commissioners Office, 3rd Floor, Suite 305, 121 North 2nd, Purcell, OK 73080.
    • After receipt and verification that the check and required information are enclosed, the road-crossing application goes before the Board of Commissioners at its next meeting; if approved, a copy is emailed to the provided address.

    road-crossing permit check: 1000 USD per permit

    “Road Crossing Application: All pertinent information on the application will need to be filled out, signed, and notarized.”

Oklahoma rules that apply here

  • Owner-builder exemptionConditional

    Owners, certain lessees, and family or employees performing roofing work on qualifying residential, farm, commercial, or single-family dwelling property in Oklahoma.

    • An actual owner of residential or farm property may physically perform roofing services or have family or employees perform them on property owned by the person.
    • Owners of commercial properties, including residential rental properties consisting of four dwelling units or less, must act as their own roofing contractor, provide all material supervision themselves, and install roofing materials according to the IBC as adopted by the OUBCC or the manufacturer's installation instructions.
    • A lessee of residential property must have the owner's consent and must perform the roofing work personally or with the lessee's own employees, using materials installed according to the IBC as adopted by the OUBCC or the manufacturer's installation instructions.
    • An owner building or improving a single-family dwelling residence for the owner's occupancy and not intended for sale or rent must act as the owner's own roofing contractor, provide all material supervision, and install materials according to the IRC or IBC as adopted by the OUBCC or the manufacturer's installation instructions.
    • A person working on the person's own property or that of an immediate relative without compensation is listed as exempt.
    • Non-exempt roofing contractors must register annually with the CIB; the source states that the application requires the required fee and documentation but does not state an amount.
    • This source concerns state roofing registration and does not establish that local building permits or inspections are waived.

    residential rental property size: <= 4 dwelling units (The exemption is stated for residential rental properties consisting of four dwelling units or less.)

    “An actual owner of residential or farm property who physically performs, or has family or employees perform roofing services on property owned by such person;”
    5 more reviewed findings on this topic
    • Conditional — A single-family residence on a separate parcel under one ownership containing at least 20 acres, with respect to building and construction codes established by a county board under the cited statute.
      “A single family residence located on a separate parcel of land under one ownership, containing twenty (20) acres or more in area;”
    • Available (with conditions) — An individual performing electrical work on the individual's own property or residence in Oklahoma.
      “3. An individual to hold a license before doing electrical work on his own property or residence except as may be required by local ordinances and resolutions.”
    • Conditional — A property owner of record or authorized representative performing minor mechanical repairs in Oklahoma.
      “1. A person who is the property owner of record, or his or her authorized representative, when performing minor repair which shall include, but not be limited to, cleaning, adjusting, calibrating and repair of mechanical system parts and the replacement of fuses and room thermostats, and other minor repairs which shall not include any repair which could violate the safe operation of the equipment;”
    • Conditional — An individual performing electrical work on the individual's own property or residence under the Oklahoma Electrical License Act.
      “hold a license before doing electrical work on his own property or residence except as may be required by local ordinances and resolutions.”
    • Available (with conditions) — An individual performing plumbing work on the individual's property of residence in Oklahoma.
      “The provisions of The Plumbing License Law of 1955 shall not apply to: [...] 6. An individual who performs plumbing work on such individual’s property of residence.”
  • Building code adoptedAdopted

    Commercial building construction throughout Oklahoma, subject to the OUBCC amendments and lawful requirements of other jurisdictions.

    • The adopted code is the 2024 International Building Code as amended and modified by OUBCC rules.
    • The 2024 IBC became effective September 14, 2026.
    • The statewide code is a minimum standard; other jurisdictions may amend or alter it only pursuant to Oklahoma law and OUBCC administrative rules.
    • The International Building Code 2021 Edition was expressly not adopted for any purpose.
    • None of the IBC 2024 appendices are included in the statewide minimum code; other jurisdictions may adopt appendices under 59 O.S. § 1000.29.
    • All IBC 2024 chapters and provisions, including exceptions, not specifically modified, deleted, moved, or removed by the rules are adopted without modification.
    • Chapter 34 is not adopted and is not part of the statewide minimum code.

    code edition: International Building Code 2024 (as amended and modified by OUBCC) · effective date: 2026-09-14

    “748:20-2-1., 748:20-2-2., 748:20-2-3., and 748:20-2-4., adopt the IBC® 2024 edition, without appendices and establishes the IBC® 2024 edition as the statewide minimum code for commercial construction in the State of Oklahoma.”
    2 more reviewed findings on this topic
    • Adopted — Minimum building-code standards for residential and commercial construction throughout Oklahoma, including construction subject to local county or municipal enforcement.
      “Base model codes have been adopted by reference and amended at the state level.”
    • Adopted — Minimum building codes for residential and commercial construction throughout Oklahoma, including construction in unincorporated areas.
      “Codes and standards adopted by the Commission shall be the minimum standards for residential and commercial construction in this state.”
  • Who permits septicState

    Private individual and small on-site sewage disposal systems in McClain County, including unincorporated areas unless a different legally applicable authority is identified.

    • Local DEQ offices approve system designs under OAC 252:641.
    • The ECLS Division, through local offices, inspects systems and approves installations.
    “Local DEQ offices approve the design of private individual and small on-site sewage disposal systems in accordance with OAC 252:641. These systems are inspected and installations are approved by the ECLS Division through its local offices.”
    2 more reviewed findings on this topic
    • State — Oklahoma’s on-site sewage treatment program, including McClain County.
      “ECLS administers Oklahoma’s on-site sewage treatment program. This includes soil tests, on-site system designs, inspection of system installations and regulatory oversight of certified installers, certified profilers and septage pumpers and transporters.”
    • State — Statewide administration and regulatory oversight of individual and small public on-site sewage treatment systems in Oklahoma.
      “ECLS administers Oklahoma’s on-site sewage treatment program.”
  • Septic permitRequired

    Construction of an on-site sewage treatment system in McClain County and elsewhere in Oklahoma.

    • The official DEQ application is for authorization/permit to construct an on-site sewage treatment system.
    • Beginning November 1, 2025, individuals not certified through DEQ are restricted to installing only one on-site sewage system per calendar year.
    • The application identifies soil-test options: DEQ-augered soil test or applicant-provided pits.
    • The application lists soil-test fees of $357.28 or $214.36 and an alternative-system plan-review fee of $285.80.

    non-certified installer annual installation limit: 1 system per calendar year (Beginning November 1, 2025) · DEQ-augered soil test fee: 357.28 USD · applicant-provided-pits soil test fee: 214.36 USD · alternative system plan review fee: 285.8 USD

    “Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ.”
    2 more reviewed findings on this topic
    • Required — New and modified on-site sewage treatment systems in McClain County, including unincorporated areas, under Oklahoma DEQ statewide regulation.
      “Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ.”
    • Required — Installing a new or modifying an existing individual or small public on-site sewage treatment system statewide.
      “Before installing a new or modifying an existing on-site sewage treatment system, an Authorization to Construct (ATC) must be purchased and issued by DEQ. After the ATC is purchased, it is assigned to the local DEQ Environmental Specialist (ES), based on the location of the property, for review and issuance. The Report for On-Site Sewage (581) must be reviewed by DEQ before the ATC may be issued.”
  • Septic inspectionRequired

    New installations and modifications of on-site sewage systems in McClain County under Oklahoma DEQ statewide regulation.

    • Inspection and approval must occur before the system may be placed into operation.
    • The inspection pathway is either DEQ inspection and approval or installation, self-inspection, and approval by a certified installer.
    • Final inspections are documented on DEQ Form 641-576.
    • Final inspections performed by a certified installer must be submitted to DEQ within 15 days of completion according to the current On-Site Sewage Information page.
    • For non-certified installers, DEQ inspection is mandatory; the installer must be present, and deficiencies must be corrected before DEQ issues the final inspection and before operation.
    • Effective November 1, 2025, a non-certified individual may install only one on-site sewage treatment system per calendar year.
    • The DEQ Certified Installers page separately states submission within ten working days, creating an unresolved inconsistency with the current On-Site Sewage Information page and the cited rule PDF, which state fifteen working days.
    • The current page does not expressly resolve whether every repair requires DEQ inspection, although OAC 252:641-21-12 expressly addresses certified-installer self-inspection of new installations, modifications, and repairs.
    “All new installations or modifications to an on-site sewage system must be inspected and approved by DEQ or installed, self-inspected and approved by a certified installer before the system may be placed into operation.”
  • Off-grid sanitationAllowed (with conditions)

    On-site sewage treatment systems used by Oklahoma homes and businesses where sewage is treated on the property rather than through a centralized sewer system.

    • The Report for On-Site Sewage determines which system types are allowed for the property and states minimum dispersal requirements based on residence size or small-public-system daily flow.
    • A DEQ Authorization to Construct is required before installing or modifying the system.
    • All new installations or modifications require DEQ inspection and approval, or certified-installer self-inspection and approval, before operation.
    • Alternative systems require DEQ approval before installation.
    • The system design depends on lot size and shape, residence size, and soil-test results.
    “determines what types of on-site systems are allowed for the property.”
  • Well permitRequired

    Groundwater wells drilled or used for non-domestic purposes in Oklahoma, including public water supply, industrial, commercial, oil and gas, poultry, medical-marijuana, and irrigation of more than 3 acres.

    • A well drilling contractor must obtain OWRB authorization and approval before drilling.
    • Authorization will not be issued unless the well location has an active groundwater use permit.
    • Groundwater permit applications must be filed before taking or using groundwater and before drilling.
    • The applicant must own or lease the land, the land must overlie a fresh groundwater basin or subbasin, the proposed use must be beneficial, and waste by depletion or pollution must not occur.
    • Failure to submit an intent-to-drill application when required may result in a penalty of up to $5,000 per day per violation.

    irrigation threshold for intent-to-drill authorization: > 3 acres (Irrigation of less than 3 acres is listed as not requiring intent-to-drill authorization.) · application response time: 5 business days approximately (OWRB staff response time stated on the Wells & Licensing page.) · maximum penalty for failure to submit required intent-to-drill application: <= 5000 USD per day per violation

    “Any well drilling contractor who intends to drill a groundwater well for non-domestic use must apply for authorization”
    3 more reviewed findings on this topic
    • Limited — Groundwater-use permits for wells serving domestic purposes in McClain County.
      “A permit is required for non-domestic use. [...] Use of water for domestic purposes (by an individual or family for households; farm and domestic animals up to the normal grazing capacity of the land; irrigation of garden, orchard, and lawn areas of 3 acres or less; and non-household uses of 5 acre feet or less annually) is exempt from the permit requirement.”
    • Not required — Domestic use of groundwater and domestic groundwater wells used for household purposes, qualifying livestock, or irrigation of less than three acres statewide.
      “A water permit is not required for domestic use of groundwater”
    • Not required — Domestic groundwater use in Oklahoma, including household purposes, livestock up to the land’s grazing capacity, and irrigation of less than 3 acres.
      “A water permit is not required for domestic use of groundwater”
  • Driveway accessLimited

    Driveways connecting to Federal or State Highway rights-of-way in Oklahoma.

    • An approved Driveway Agreement is required before work on the State Highway right-of-way.
    • The application requires an original Driveway Agreement and a sketch or site plan.
    • Drainage must be properly disposed of and runoff may not run onto the highway.
    • If the driveway is within city limits, the Agreement must be signed or permitted in writing by a city authority.
    • No alteration or relocation may be made without prior written permission from ODOT or its authorized representatives.
    • The permit expires if the driveway is not constructed within six months after the effective date unless a written extension is requested.

    permit expiration period: 6 months (Unless the applicant requests a written time extension from ODOT.)

    “Under no circumstances shall the applicant be permitted to do any work on the State Highway right-of-way until an approved copy of the application is in hand.”
  • county zoning authorityLimited

    County zoning authority in unincorporated areas under Oklahoma Statutes Title 19, Sections 868.1 through 868.22.

    • The authority applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census.
    • The zoning authority is for unincorporated areas of the county.
    • Existing lawful uses are protected except as otherwise provided by the statute.
    • The statute excludes public utilities subject to Corporation Commission or similar state or federal regulation, usual farm buildings for agricultural purposes, planting agricultural crops, and extraction of minerals.
    • Zoning regulations must address the statutory public-health, safety, welfare, transportation, utilities, public facilities, and land-use purposes.

    county population threshold: > 500000 persons (latest Federal Decennial Census)

    “population in excess of five hundred thousand (500,000)”
    2 more reviewed findings on this topic
    • Limited — County zoning regulations for unincorporated areas under Title 19, §§19-868.1 through 19-868.22.
      “The board of county commissioners is hereby empowered to adopt zoning regulations effective in the unincorporated areas of the county for the purposes of promoting the health, safety, peace, morals, comfort and the general welfare of the inhabitants; lessening danger and congestion in public transportation and travel; securing safety from fire and other dangers; preventing overcrowding of land; avoiding undue concentration of population; providing adequate police protection, transportation, water, sewerage, schools, parks, forests, recreational facilities, airports, military and naval facilities, and other public requirements; and preventing undue encroachment thereon. The zoning power hereby conferred shall not be exercised so as to deprive the owner of any existing property of its use or maintenance for the purpose to which it is then lawfully devoted except as hereinafter provided; nor shall the provisions of this act apply to the erection, installation and use of structures and equipment by public utilities subject to the jurisdiction and regulation of the Corporation Commission of the State of Oklahoma or other similar state or federal regulatory bodies; nor to the erection or use of the usual farm buildings for agricultural purposes, the planting of agricultural crops or the extraction of minerals.”
    • Limited — County planning and zoning through a cooperative city-county planning commission for the unincorporated area of an eligible county.
      “county plan within the unincorporated area”
  • county building authorityLimited

    County adoption and enforcement of building or fire codes in unincorporated areas under 19 O.S. § 868.17A.

    • The authority applies only in unincorporated areas.
    • The provision does not apply to counties not subject to 19 O.S. §§ 868.1 through 868.22; those provisions apply only to counties with a population in excess of 500,000 according to the latest Federal Decennial Census.
    • Public-utility electric supply and communication lines regulated by the Corporation Commission are excluded.
    • The county may prescribe permits, notices, inspection procedures, and reasonable fees sufficient to cover inspection and enforcement expenses.
    • Building inspectors must be licensed by Oklahoma.

    county population threshold: > 500000 persons (latest Federal Decennial Census) · inspection and enforcement fees: reasonable and sufficient to meet inspection and enforcement expense

    “may, by resolution, adopt building codes, fire codes”
    One more reviewed finding on this topic
    • Limited — County adoption and enforcement of building and fire codes, including permits and inspections, in unincorporated areas under Title 19, §§19-868.1 through 19-868.22.
      “The board of county commissioners may, by resolution, adopt building codes, fire codes, or both building and fire codes which shall be designed for the purpose of promoting, benefiting, and protecting the public health, safety and welfare of the people of this state. The codes adopted pursuant to this section shall be applicable only in the unincorporated areas of the county. All building materials, equipment, and methods of installation or construction shall be at least the equivalent of that prescribed in any building or fire code adopted by the board of county commissioners in quality, strength, effectiveness, fire resistance, durability, and safety. Any codes adopted pursuant to this section shall not apply to the installation and maintenance of electric supply and communication lines of public utilities and public service companies which are regulated by the Corporation Commission. The provisions of this section shall not apply to any area located within any county not subject to the provisions of Section 868.1 through 868.22 of Title 19 of the Oklahoma Statutes. Building inspectors may be employed by a county to enforce building or fire codes. The building inspectors shall be licensed by the State of Oklahoma. The building inspectors shall enforce the provisions of any building or fire code adopted pursuant to this section and shall be authorized to inspect all buildings for the purpose of discharging the duties imposed by this section or by any building or fire code adopted by the board of county commissioners. The board of county commissioners may adopt rules to carry out the inspections to enforce the building or fire codes, may prescribe the necessary permits, notices, and inspection procedures and may set and determine fees. The fees shall be reasonable and shall be sufficient to meet the expense of inspection and enforcement of the building or fire codes.”

Inside cities and towns in McClain County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Building code adoptedAdopted (with conditions)

    Building-code adoption by the City of Blanchard, McClain County, Oklahoma.

    • The source states that Blanchard's municipal codes adopted the international building codes for the city's building codes.
    • The source also states that Blanchard has a code enforcement officer and building permits/building inspections.
    “Building Codes: The City of Blanchard's municipal codes adopted the international building codes for the city's building codes. Building Permits/Building Inspections: Yes, Blanchard Has a Code Enforcement Officer.”
  • Local zoningPresent (with conditions)

    Zoning within the City of Blanchard, McClain County, Oklahoma.

    • The source states that the zoning code is updated annually.
    • Subdivision regulations are also updated annually according to the source.
    “2023 CODE OF ORDINANCES 22 - Subdivision Regulations 21 - Zoning Regulations”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Inspections — Building inspections administered by McClain County.
  • Certificate of occupancy — Certificates of occupancy issued or required by McClain County.
  • Mandatory utility hookup — Whether a property in McClain County must connect to public water, public sewer, both, or neither.
  • Short-term rentals — Short-term rentals in McClain County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in McClain County, Oklahoma

Is McClain County a good place to live off-grid or homestead?

McClain County scores 43/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost and low administrative friction for a quiet rural property. Watch-outs: little seclusion — roughly 1,157,303 people within a 30-minute drive.

Do you need a building permit in McClain County, Oklahoma?

McClain County requires a building permit only in limited cases (such as floodplains or specific zones), and it has no county-wide zoning. Onsite septic is permitted by Oklahoma Department of Environmental Quality (DEQ), On-Site Sewage. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in McClain County?

Living in an RV on your own land in McClain County is allowed: Unincorporated McClain County: no county rule sets this, because McClain County has adopted no county zoning ordinance (Oklahoma law lets some counties zone, but this one has not). McClain County's own reviewed answer confirms it has no county-wide zoning. Septic, floodplain, subdivision and health rules still apply; cities and towns set their own rules inside their limits. The act applies only to counties having a population in excess of 500,000 according to the latest Federal Decennial Census. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in McClain County, Oklahoma?

Land in McClain County runs about $3,806 per acre, based on the latest county data.

What is the water situation in McClain County?

McClain County gets about 37.4" of rain a year, with severe drought in roughly 21.4% of years.

How remote is McClain County?

A representative private-land location has about 1,157,303 people within a 30-minute drive and 3,426,868 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How McClain compares in Oklahoma

Compare side-by-side →See all 77 Oklahoma counties ranked →