Bolthole Index

Clinton County, Illinois

Building permits, zoning and land rules in Clinton County, Illinois

64Index Score / 100
#43 of 102 in Illinois

Unincorporated Clinton County, Illinois requires a Certificate of Zoning Compliance to erect, move, alter or use a building1. County zoning also applies in villages without their own zoning ordinance, while listed municipalities administer their own zoning2. For a home or other building with a bathroom, obtain the Health Department sewage permit before County Zoning issues the building permit3.

At a glance

Building permit
A zoning certificate is required for a home on county-administered land1
Zoning
County zoning applies on unincorporated land and in villages without local zoning4
Septic permits
Handled by the Clinton County Health Department5
Owner-installed septic
A homeowner may install a system for the homeowner's own residence, with a permit6
Private wells
A county permit is required to construct, modify or seal a private well7
Minimum home size
At least 900 square feet for a site-built residence; 980 for a modular home89
Septic soil difficulty
Only 6.2% of soils avoid severe limits for a conventional drain field10

Who to call

Zoning

Clinton County Zoning Department

Zoning, residential and agricultural building permit applications, subdivision and floodplain ordinances

(618) 594-6655

zoning@clintonco.illinois.gov

850 Fairfax Street Rm 124 Carlyle, IL 62231

Health department

Clinton County Health Department, Environmental Health

Private sewage disposal permits, plan review and installation inspections

(618) 594-2723

991 Franklin St. Carlyle, Illinois 62231

Health department

Clinton County Health Department, Private Water Supply

Permits and inspections for private water wells and closed-loop wells

(618) 594-2723

991 Franklin St. Carlyle, Illinois 62231

Contact details are copied from each office’s official page and were checked against it on October 7, 2026.

Off-grid gear

Going off-grid in Clinton 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 Clinton County, Illinois?

Yes. On county-administered land, Clinton County requires a Certificate of Zoning Compliance to erect, move, alter or use a building or premises1. Re-roofing, window replacement and similar maintenance generally do not require a permit11. A new-home application requires a site plan, floor plan and sewage permit3. The published residential fee is $0.135 per square foot with a $50 minimum, and fees are non-refundable12. Qualifying agricultural land and buildings are exempt from most zoning permits and regulations, but the structures must meet setbacks and receive an initial zoning certificate13. The commercial inspection-and-certification rule does not apply to new residential construction14. Ask the Zoning Department which residential plan reviews and inspections apply15.

Who is the Clinton County building department, and how do you reach it?

The Clinton County Zoning Department is the building-permit contact for a home on county-administered land15. The department regulates land and structures and administers the subdivision and floodplain ordinances15. Call (618) 594-6655 or email zoning@clintonco.illinois.gov before designing around an assumed use, setback or permit path15. The office is at 850 Fairfax Street Rm 124, Carlyle, IL 6223115. County Zoning serves unincorporated land plus Bartelso, Boulder, Ferrin, Jamestown, New Memphis, Shattuc and St Rose; Albers, Aviston, Beckemeyer, Breese, Carlyle, Centralia, Damiansville, Germantown, Hoffman, Huey, Keyesport and Trenton administer their own zoning2. The Clinton County Health Department remains the countywide contact for private sewage systems5.

Does Clinton County have zoning?

Yes. County zoning applies to unincorporated Clinton County and villages without their own zoning ordinance4. The ordinance divides the unincorporated area into districts and identifies permitted and special uses in each16. Lot area, setbacks and maximum height depend on the district171819. Outside incorporated limits, the minimum setback is 100 feet from a county-road centerline and 75 feet from a township-road centerline18. An accessory structure cannot be used as a dwelling in any county zoning district20. Clinton County regulates subdivisions, and the Health Department reviews subdivision plats proposing private sewage2122. Floodplain development such as filling, grading, paving and building requires a county permit23.

How do septic permits work in Clinton County?

The Clinton County Health Department controls the county private sewage program5. A permit is required before constructing, altering or extending a private sewage system, and it is valid for 12 months24. The department must receive at least 48 hours' notice and inspect the installation before it is covered25. A homeowner may install a system for the homeowner's own residence, but the permit and inspection requirements still apply6. The Health Department may refuse a private-system permit when a practical public or community sewer connection is available, including a permitted connection within 600 feet for a single-family home26. Household sinks, showers and laundry drains must connect to the sewage system; gray-water discharge is prohibited27. Only 6.2% of Clinton County soils avoid severe limits for a conventional drain field, so test feasibility early10.

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

In unincorporated Clinton County, an RV cannot be occupied as a dwelling outside a lawful commercial campground unless the Board of Appeals approves a temporary use and the Zoning Administrator signs it; the parcel must be zoned Agricultural28. A site-built tiny home treated as a residence must be on a full-perimeter permanent foundation and contain at least 900 square feet of living area29. A modular home must contain at least 980 square feet, while a manufactured residence must contain at least 900 square feet930. An accessory structure cannot be used as a dwelling in any county zoning district20. Any dwelling must also satisfy the district's lot, setback and height standards171819.

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

  1. Ask Zoning to identify the parcel's jurisdiction and district, then confirm its allowed use, lot size, setbacks, height and floodplain requirements217181931.
  1. Have the Health Department review sewage feasibility early because only 6.2% of county soils avoid severe limits for a conventional drain field10.
  1. Obtain the sewage permit before seeking the county building permit for a home or other building with a bathroom3.
  1. Submit the site plan, floor plan and sewage permit to Zoning for the Certificate of Zoning Compliance3.
  1. Contact the County Highway Department about a new entrance or mailbox along a county highway32.
  1. If using a private well, obtain the Health Department permit before construction or modification7.
  1. Ask Zoning which residential inspections and final clearance apply because we could not confirm a general residential building-inspection rule or separate certificate of occupancy15.

What should you check before buying land in Clinton County?

Confirm whether county or municipal zoning governs the parcel and get the applicable district rules in writing2. County minimum lot size, setbacks and height limits are district-specific171819. Ask Zoning about floodplain approval before planning a house pad, grading or paving in a floodplain district2315. Test septic feasibility early because only 6.2% of county soils avoid severe limits for a conventional drain field10. A residential lot using private sewage generally needs at least 10,000 square feet, while a lot using both a private well and private sewage generally needs at least one acre, subject to Health Department review and possible variance33. A subdivision plat using private sewage also requires Health Department review22. The effective property-tax rate is about 1.9%, with a median annual bill of $3,3563435.

Watch-outs

  • A Clinton County sewage permit must be issued before County Zoning issues a building permit for a residence or other structure with a bathroom3.
  • The homeowner allowance for installing a private sewage system does not remove the sewage permit or inspection requirements6.
  • RV dwelling use is confined to lawful commercial campgrounds unless the county approves a qualifying temporary use on Agricultural-zoned land28.
  • A site-built residence must have at least 900 square feet of living area, and an accessory structure cannot serve as a dwelling820.

Sources

  1. Residential Application, quoted and re-checked
  2. Building in Clinton County Frequently Asked Questions, quoted and re-checked
  3. Building in Clinton County Frequently Asked Questions, quoted and re-checked
  4. Zoning, quoted and re-checked
  5. Private Sewage Disposal, quoted and re-checked
  6. Private Sewage Disposal System Information Packet, quoted and re-checked
  7. Private Water Supply, quoted and re-checked
  8. Clinton County, Illinois 2025 County Code — Zoning Code, quoted and re-checked
  9. Clinton County, Illinois 2025 County Code — Zoning Code, quoted and re-checked
  10. 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
  11. Residential Application, quoted and re-checked
  12. Residential Application, quoted and re-checked
  13. Clinton County Zoning Code, quoted and re-checked
  14. Building in Clinton County Frequently Asked Questions, quoted and re-checked
  15. Clinton County Zoning Department (clintonco.illinois.gov)
  16. Building in Clinton County Frequently Asked Questions, quoted and re-checked
  17. clintonco.illinois.gov, quoted and re-checked
  18. clintonco.illinois.gov, quoted and re-checked
  19. Clinton County Zoning Code, quoted and re-checked
  20. Clinton County Zoning Code, quoted and re-checked
  21. Zoning, quoted and re-checked
  22. Zoning | Clinton County, Illinois, quoted and re-checked
  23. Zoning | Clinton County, Illinois, quoted and re-checked
  24. Clinton County Health Code, quoted and re-checked
  25. Private Sewage Disposal System Information Packet, quoted and re-checked
  26. clintoncountyhealth.com, quoted and re-checked
  27. Private Sewage Disposal System Information Packet, quoted and re-checked
  28. Clinton County Code, Chapter 40 Zoning Code, quoted and re-checked
  29. Zoning | Clinton County, Illinois, quoted and re-checked
  30. Clinton County, Illinois 2025 County Code — Zoning Code, quoted and re-checked
  31. Zoning, quoted and re-checked
  32. clintonco.illinois.gov, quoted and re-checked
  33. Revised Code of Ordinances of Clinton County, Illinois — 2023, quoted and re-checked
  34. Effective property tax rate: Bolthole Index county data
  35. Median property tax bill: Bolthole Index county data

Written October 7, 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

Like all 6 of its neighbors, Clinton County has countywide zoning.

RuleClinton CountyWashington CountyBond CountyMarion CountyMadison CountySt. Clair CountyJefferson County
Building permitRequiredRequiredRequiredLimitedRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Health Dept.County Health Dept.County Health Dept.County Health Dept.County Planning & Development Dept.County Health Dept.County Health Dept.

County locator

Clinton County in Illinois

64
County map
Clinton County highlighted among the Illinois counties · colored by Index score

How Clinton County scores

Seclusion54100% ev.
Self-Sufficiency64100% ev.
Admin Boringness47100% ev.
Durability60100% ev.
Property Autonomy42100% ev.
Carry Cost55100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$225kTypical home
1.9%Property tax
$9,036Land / acre
43.1"Annual rain
1.7% of yrsSevere drought
9.5 / yr (+8.5)Mid-century 100°F days
16.3 daysMid-century dry spell
1.98" (+7.4%)Mid-century 1-day rain
1.87×Wildfire change factor
100%Forward climate coverage
$1,658Home insurance / yr
3.1% / yrInsurance growth
0.62%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
10,507People within 30 min
3,361,590People within 2 hr
47,434Radius comparison (15 mi)
77.6People / sq mi
6.3%Federal land
99%Land at 15% slope or less
6.2%Soils rated "not limited" for septic (strict USDA rating)
17,529 acWorkable land screen
18.5%Wooded land
59.3 tonsBiomass / forest ac
55.5°FAvg temp

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Cities and towns in Clinton 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: Village of Albers · Village of Aviston · Village of Bartelso · Village of Beckemeyer · Breese · Breese Township · Brookside Township · Carlyle Township · Clement Township · Village of Damiansville · East Fork Township · Germantown Township · Village of Germantown · Village of Hoffman · Village of Huey · Irishtown Township · Lake Township · Looking Glass Township · Meridian Township · Santa Fe Township · St. Rose Township · Village of St. Rose · Sugar Creek Township · Wade Township · Wheatfield Township

Answers from the rulebook for Clinton County

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

Clinton County rules

  • Building permitRequired

    Erection, moving, alteration, and use of buildings and premises in county-administered areas.

    • A Certificate of Zoning Compliance is required under the County Zoning Ordinance.
    • A private sewage permit is required before County Zoning issues a building construction permit for applicable residences or structures containing a bathroom.
    • Re-roofing, window replacement, and similar maintenance projects generally do not require a permit.
    • Municipalities administering their own zoning may have different requirements.
    “Application is hereby made for a Certificate of Zoning Compliance, as required under the ZONING ORDINANCE OF CLINTON COUNTY, for the erection, moving or alteration, and use of buildings and premises.”
    One more reviewed finding on this topic
    • Required — Erection, moving, alteration, and use of buildings and premises subject to the Clinton County Zoning Ordinance.
      “Application is hereby made for a Certificate of Zoning Compliance, as required under the ZONING ORDINANCE OF CLINTON COUNTY, for the erection, moving or alteration, and use of buildings and premises.”
  • Owner-builder exemptionConditional

    Installation or servicing of a private sewage disposal system serving the homeowner's own personal single-family residence within Clinton County.

    • A valid private sewage disposal permit is still required for construction, alteration, or extension of an individual domestic sewage disposal system.
    • The homeowner exception is limited to a private sewage disposal system serving the homeowner's own personal single-family residence.
    • The general rule requires valid private sewage disposal system installation-contractor registration for construction, installation, modification, maintenance, or servicing, and valid pumping-contractor registration for pumping, cleaning, hauling, and disposal.
    • Routine cleaning of private sewage disposal system components, replacing septic tank covers, and rodding out inlet and outlets do not require a construction permit.
    • Persons constructing, installing, repairing, or modifying a private sewage disposal system must notify the Health Department at least forty-eight (48) hours before work begins, and the system may not be covered or placed in operation until inspected and approved by the Health Department.
    • The initial construction, alteration, or extension permit fee is $125.00.

    permit validity: 12 months from issuance (If construction has not started within this period, the permit is void.) · initial construction, alteration, or extension permit fee: 125 USD (Collected by the Health Department when the application is submitted.) · pre-work notice: >= 48 hours (Notice to the Health Department before commencement of construction, installation, repair, or modification.)

    “provided, however, that a home owner may install and/or service a private sewage disposal system which serves his own personal single family residence.”
    2 more reviewed findings on this topic
    • Available (with conditions) — Installation of private sewage disposal systems by the property owner.
      “Only Licensed Private Sewage Disposal Installation Contractors or the property owner may install a private sewage disposal system.”
    • Available (with conditions) — Installation of a private sewage disposal system in Clinton County.
      “Installation of the sewage system must be performed by a State Licensed Private Sewage Disposal Contractor, with the homeowner as an exemption to this regulation.”
  • County-wide zoningPresent (with conditions)

    County zoning in unincorporated Clinton County and villages without their own zoning ordinance.

    • The ordinance became effective in January 1991.
    • Villages with their own zoning ordinance are excluded.
    “The Clinton County Zoning Ordinance became effective January, 1991 and applies to the unincorporated areas of the county as well as within villages that do not have their own zoning ordinance.”
    One more reviewed finding on this topic
    • Present (with conditions) — Unincorporated areas of Clinton County and villages without their own zoning ordinance.
      “The Clinton County Zoning Ordinance became effective January, 1991 and applies to the unincorporated areas of the county as well as within villages that do not have their own zoning ordinance.”
  • Local zoningVaries (with conditions)

    Aggregate local-zoning status across Clinton County municipalities, villages, and unincorporated areas.

    • County zoning applies in the unincorporated area and listed villages without their own zoning ordinance.
    • Albers, Aviston, Beckemeyer, Breese, Carlyle, Centralia, Damiansville, Germantown, Hoffman, Huey, Keyesport, and Trenton administer their own zoning ordinances.
    “County Zoning regulations apply to Bartelso, Boulder, Ferrin, Jamestown, New Memphis, Shattuc, and St Rose and the unincorporated areas of Clinton County. The municipalities of Albers, Aviston, Beckemeyer, Breese, Carlyle, Centralia, Damiansville, Germantown, Hoffman, Huey, Keyesport and Trenton administer their own zoning ordinance.”
    One more reviewed finding on this topic
    • Varies — Aggregate local zoning across Clinton County; county zoning applies outside municipalities with their own zoning codes, while incorporated municipalities may administer local zoning.
      “This Code shall be applicable throughout Clinton County, except within the corporate limits of municipalities which have adopted local zoning codes.”
  • Zoning districtsPublished

    Zoning districts and district-specific uses in the Clinton County zoning jurisdiction.

    • The county FAQ states that the unincorporated area is divided into zoning districts and that the ordinance lists permitted and special uses by district.
    • Municipalities with their own zoning ordinances are outside this county-district claim.
    “The unincorporated area of Clinton County is divided into zoning districts. The ordinance lists certain types of uses that are permitted or are special uses in each district.”
    One more reviewed finding on this topic
    • Published (with conditions) — County zoning districts governing unincorporated Clinton County and specified villages.
      “Restrictions “A” “A-R” “A-R 10” “R-1” “R-2” “R-3” “R-3-Overlay” “C” “I””
  • Minimum dwelling sizeSpecified

    Modular homes in the Clinton County zoning jurisdiction.

    • The living-area width/length ratio may not exceed 3 to 1, excluding garages, carports, porches, or attachments.
    • All wheels and towing devices must be removed.
    • Residential-style siding and roofing are required.
    • A six-inch minimum eave overhang is required.
    • A yellow Illinois-shaped seal must be on the electrical panel box or inside the kitchen sink cabinet.
    • Local officials may require additional items beyond minimum state requirements, including HUD Code or the International Building Code.
    • Installation must follow the manufacturer's instructions.
    • The county code does not apply within municipalities that have adopted local zoning codes; it applies in unincorporated areas and villages without their own zoning ordinance.

    minimum living area: >= 980 square feet (garages, carports, porches, or attachments excluded from living area) · minimum roof pitch: >= 4/12 pitch · minimum eave overhang: >= 6 inches

    “As with all residences, a modular home shall have a minimum 4/12 pitch with residential style siding and roofing, six (6) inch minimum eave overhang, shall have a minimum living area of not less than nine hundred eighty (980) square feet.”
    2 more reviewed findings on this topic
    • Specified — Site-constructed single-family residences in the Clinton County zoning jurisdiction.
      “A residence must have a minimum 3/12 pitch roof, six (6) inch minimum eave overhang, and must have a minimum living area of not less than nine hundred (900) square feet. Residences must meet all adopted federal and/or local building codes.”
    • Specified — Manufactured residences in the Clinton County zoning jurisdiction.
      “A manufactured residence must have a minimum of 3/12 pitch roof, six (6) inch minimum eave overhand, and must have a living area of not less than nine hundred (900) square feet. Manufactured residences must meet all adopted federal and/or local building codes.”
  • Minimum lot sizeSpecified

    Lots and principal structures in Clinton County zoning districts.

    • Requirements vary by zoning district and the applicable district schedule controls.
    • Health-department lot-size rules may also apply to private sewage and private water systems.

    district schedule: A: 40 acres; AR: 3 acres for more homes; AR-10: 10 acres for one home; R-1: 1 acre; R-2: 10,000 square feet; R-3: 7,500 square feet; R-3-Overlay: 7,500 square feet; C: 6,000 square feet; I: 20,000 square feet

    “The above restrictions are for the particular district in which said lot/principal structure is located.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Lots and principal structures in county zoning districts A, A-R, A-R 10, R-1, R-2, R-3, R-3-Overlay, C, and I.
      “Restrictions “A” “A-R” “A-R 10” “R-1” “R-2” “R-3” “R-3-Overlay” “C” “I””
  • SetbacksDistrict specific (with conditions)

    Setbacks for lots and structures in Clinton County zoning districts.

    • Front, side, and rear setbacks vary by district.
    • Outside incorporated limits, the table states a 100-foot setback from the centerline of county roads and a 75-foot setback from the centerline of township roads.
    • Except along Interstate and State Routes, the minimum setback is 75 feet from easements or rights-of-way.
    • Subdivisions existing before January 1, 1991 use the R-2 minimum setback requirements.
    “Subdivisions existing prior to the adoption of this Code, on January 1, 1991, shall use the minimum setback requirements as established for the “R-2” District.”
    One more reviewed finding on this topic
    • Specified — Setbacks for structures in Clinton County zoning districts.
      “the minimum setback shall be 100 feet from the centerline of the road, and township roads the minimum setback shall be 75 ft. from the centerline of the road.”
  • Building heightSpecified

    Building height in Clinton County zoning districts.

    • Maximum height varies by district and structure type.
    • No height limit applies to accessory structures in A or I districts under Section 40-3-14(A)(3).

    residential accessory structure maximum: <= 25 feet (To peak) · AR or C accessory structure maximum: <= 35 feet (To peak) · A or I accessory structure maximum: none

    “There shall be no height limits on any accessory structures in the “A” or “I” Districts.”
    One more reviewed finding on this topic
  • Living in an RVLimited

    Recreational-vehicle occupancy for dwelling purposes in county zoning jurisdiction.

    • RV dwelling occupancy is prohibited except in lawfully established commercial campgrounds.
    • Temporary RV dwelling use may be permitted only after approval by the Clinton County Board of Appeals and signature by the Zoning Administrator.
    • The temporary-use provisions include agricultural zoning, construction-delay, and recreational-use conditions.
    • Adequate water and sewage facilities and Clinton County Health Department approval are required for the recreational-use condition.
    • Floodplain RVs may not be permanent dwellings and must be under 400 square feet with specified elevated services.

    floodplain RV size: < 400 square feet

    “Recreational vehicles, as defined herein, shall not be occupied for dwelling purposes except in lawfully established commercial campgrounds.”
  • Tiny homesLimited

    A tiny home that qualifies as a site-constructed single-family residence in the Clinton County zoning jurisdiction.

    • The county code does not define the term tiny home; this claim applies the code's residence standards to a site-constructed single-family home.
    • The residence must be placed on a full perimeter permanent foundation extending below frost depth and permanently attached to that foundation.
    • The residence must meet adopted federal and/or local building codes.
    • County zoning applies throughout Clinton County except within municipalities that have adopted local zoning codes; the county zoning department states that it applies to unincorporated areas and villages without their own zoning ordinance.

    living area: >= 900 square feet · roof pitch: >= 3/12 pitch · eave overhang: >= 6 inches · living-area width/length ratio: <= 3 to 1 (garages, carports, porches, or attachments are excluded)

    “Residence. As defined by this Code, a residence is a site-constructed single-family home. The average width and/or length of the living area (excluding garages, carports, porches, or attachments) of a residence shall not exceed a ratio of 3 to 1. All residences must be placed on a full perimeter permanent foundation extending below the frost depth and must be permanently attached to that foundation. A residence must have a minimum 3/12 pitch roof, six (6) inch minimum eave overhang, and must have a minimum living area of not less than nine hundred (900) square feet. Residences must meet all adopted federal and/or local building codes.”
    One more reviewed finding on this topic
    • Limited — A tiny-home configuration that qualifies as a recreational vehicle and is used for dwelling purposes in unincorporated Clinton County.
      “40-5-13 RECREATIONAL VEHICLES. Recreational vehicles, as defined herein, shall not be occupied for dwelling purposes except in lawfully established commercial campgrounds. The temporary use of a recreational vehicle for dwelling purposes may be permitted when an application for a permit has been approved by the Clinton County Board of Appeals and signed by the Zoning Administrator and the following conditions must be considered. (A) Must be zoned Agricultural.”
  • Manufactured homesLimited

    Manufactured homes and manufactured-home parks in county zoning jurisdiction.

    • Manufactured homes must have the National Manufactured Housing Construction and Safety Standards seal.
    • Manufactured-home parks must meet minimum acreage, dimensions, setbacks, height, lot-size, utility, and HUD requirements.
    • The code adopts applicable Illinois manufactured-home and public-health requirements.

    manufactured-home park minimum area: >= 2 acres · manufactured-home park minimum width and depth: 250 x 250 feet · manufactured-home park maximum height: <= 35 feet · individual manufactured-home space minimum area: >= 5000 square feet

    “No manufactured home or immobilized manufactured home shall be located in the County unless the unit has the National Manufactured Housing Construction and Safety Standards metal seal affixed thereto.”
  • Accessory dwellingsProhibited

    Use of an accessory structure as a dwelling in county zoning districts.

    • The code separately permits qualifying accessory uses but prohibits use of an accessory structure as a dwelling.
    • Home occupation use in an accessory structure is also prohibited.
    “Use of any accessory structure as a dwelling is strictly prohibited in every zoning district.”
    One more reviewed finding on this topic
    • Prohibited — Use of an accessory structure as a dwelling in county-administered zoning districts.
      “Use of any accessory structure as a dwelling is strictly prohibited in every zoning district.”
  • Who permits septicCounty

    Private sewage disposal systems in Clinton County.

    • The County Health Department controls the Clinton County Private Sewage Code.
    • The code is interpreted and enforced with the Illinois Private Sewage Disposal Licensing Act and Code.
    “The Clinton County Private Sewage Code is under the control of the Health Department to prevent the transmission of disease organisms, environmental contamination, and nuisances resulting from the improper handling, storage, transportation and disposal of sewage from private sewage disposal systems.”
    2 more reviewed findings on this topic
    • County (with conditions) — Private sewage disposal systems in Clinton County.
      “The Clinton County Private Sewage Code is under the control of the Health Department to prevent the transmission of disease organisms, environmental contamination, and nuisances resulting from the improper handling, storage, transportation and disposal of sewage from private sewage disposal systems.”
    • County (with conditions) — Private sewage disposal systems in Clinton County.
      “The Clinton County Private Sewage Code is under the control of the Health Department to prevent the transmission of disease organisms, environmental contamination, and nuisances resulting from the improper handling, storage, transportation and disposal of sewage from private sewage disposal systems.”
  • Septic permitRequired

    New installation, replacement, alteration, or modification of a private sewage disposal system.

    • The permit must be obtained before construction.
    • The permit is valid for twelve months.
    • Routine cleaning, replacing septic tank covers, and rodding inlet and outlets do not require a construction permit.
    • The Health Department may refuse a permit when public or community sewer is available under stated distance and practicality rules.

    permit validity: 12 months (If construction has not started within this period, the permit is void.) · single-family sewer distance: <= 600 feet (Public sewer is deemed available for a single-family residence.) · commercial, subdivision, or multifamily sewer distance: <= 1000 feet (Public sewer is deemed available for a commercial establishment, subdivision, or multifamily dwelling.)

    “It shall be unlawful for any person to construct, alter or extend individual domestic sewage disposal system within Clinton County, Illinois, unless he/she holds a valid permit issued by the Clinton County Health Department stating the name of such person for which the specific construction, alteration, or extension is proposed. This permit shall be valid for a period of twelve (12) months from the date it is issued.”
    One more reviewed finding on this topic
    • Required — Installing, replacing, or modifying a private sewage system.
      “A permit from the Clinton County Health Department is required to install, replace or modify a private sewage system prior to construction.”
  • Septic inspectionRequired

    Installation of private sewage disposal systems.

    • The Health Department must be contacted at least 48 hours before construction to schedule inspection.
    • Inspection must occur before the system is covered.
    • The inspection verifies compliance with county and state sewage requirements.

    notice period: >= 48 hours

    “After a Private Sewage Disposal Construction Permit has been issued and you are ready to install the sewage system, contact the Health Department at least 48 HOURS prior to construction to schedule an inspection. An onsite inspection is required for compliance with the Clinton County Private Sewage Code and State Private Sewage Disposal Act and Code prior to covering the system.”
    One more reviewed finding on this topic
    • Required — Private sewage system installation in Clinton County.
      “An inspection of the sewage system is conducted during installation prior to covering to ensure Illinois Private Sewage Disposal Code requirements are being met.”
  • Off-grid sanitationLimited

    Private sewage disposal systems serving property in Clinton County, Illinois.

    • A valid permit from the Clinton County Health Department is required for construction, alteration, or extension.
    • The permit is valid for twelve months from issuance.
    • A permit may be refused where public or community sewage is available; availability includes a sewer adjoining or abutting the premises or a practical connection within 600 feet for a single-family residence or 1,000 feet for a commercial establishment, subdivision, or multifamily dwelling.
    • Minimum lot size is 10,000 square feet for a residential structure requiring private sewage disposal and one acre where both private water supply and private sewage disposal are proposed, subject to Health Department review and possible variance.
    • The system must comply with the Illinois Private Sewage Disposal Licensing Act and Code and must be inspected and approved before being covered or placed in operation.
    • A homeowner may install or service a private sewage system serving the homeowner's personal single-family residence.

    residential minimum lot size: >= 10000 square feet (A greater area may be required; a variance may be granted under the stated conditions.) · private water supply plus private sewage minimum lot size: >= 1 acre (A greater area may be required; a variance may be granted under the stated conditions.) · public sewer reasonable distance for single-family residence: <= 600 feet (The Board of Health may refuse a private sewage permit where a practical public or community sewer connection is available.) · public sewer reasonable distance for commercial establishment, subdivision, or multifamily dwelling: <= 1000 feet (The Board of Health may refuse a private sewage permit where a practical public or community sewer connection is available.)

    “It shall be unlawful for any person to construct, alter or extend individual domestic sewage disposal system within Clinton County, Illinois, unless he/she holds a valid permit issued by the Clinton County Health Department”
    One more reviewed finding on this topic
    • Prohibited — Gray-water discharge and household wastewater drainage from buildings using private sewage disposal.
      “Existing homes or buildings must have all wastewater drains connected to the sewage system (stools, showers, sinks, laundry drains, etc.), excluding perimeter tile, sump pumps and gutter drains. Gray water discharges are prohibited.”
  • Well permitRequired

    Construction, modification, or sealing of private water wells and closed-loop well systems.

    • Well permits are valid for one year from issuance.
    • Water-well contractors must be licensed and closed-loop contractors must be registered with IDPH.

    permit validity: 1 year

    “The Clinton County Health Department reviews well application plans and issues permits to construct, modify or seal private water wells and closed loop well systems. Well permits are valid for a period of one year from the date of issuance.”
    One more reviewed finding on this topic
    • Required — Construction, modification, or sealing of private water wells and closed-loop well systems.
      “The Clinton County Health Department reviews well application plans and issues permits to construct, modify or seal private water wells and closed loop well systems. Well permits are valid for a period of one year from the date of issuance.”
  • Mandatory utility hookupConditional

    Private sewage disposal permits for premises in Clinton County where public or community sewer service may be available.

    • The Clinton County Board of Health or its authorized representative may refuse a private sewage-system permit where public or community sewage systems are available.
    • A sewer is deemed available when a public sewer line is in place within a street, alley, right of way, or easement adjoining or abutting the premises, or when the improvement is within a reasonable distance of a public sewer to which connection is practical and permitted by the controlling sewer authority.
    • Reasonable distance is not greater than 600 feet for a single-family residence and not greater than 1,000 feet for a commercial establishment, subdivision, or multi-family dwelling.
    • A connection is practical when it can be completed using customary sewer lines.
    • The need to annex an improvement to a municipality to connect to the municipal sanitary sewer system does not make the system unavailable.
    • This source establishes a conditional sewer-availability rule for private sewage permitting; it does not establish a universal requirement that every property connect to public water or sewer.

    reasonable sewer distance for single-family residence: <= 600 feet · reasonable sewer distance for commercial establishment, subdivision, or multi-family dwelling: <= 1000 feet

    “The Board of Health or its Authorized Representative may refuse to grant a permit for the construction of a private sewage disposal system”
    One more reviewed finding on this topic
    • Sewer (with conditions) — Private sewage permit applicants where public or community sewer is available.
      “The Board of Health or its Authorized Representative may refuse to grant a permit for the construction of a private sewage disposal system where public or community sewage systems are available.”
  • Agricultural exemptionAvailable (with conditions)

    Land used or to be used for agricultural purposes and buildings or structures used or to be used for agricultural purposes in county zoning districts.

    • The exemption covers regulations and permits for agricultural land and the erection, maintenance, repair, alteration, remodeling, or extension of agricultural buildings or structures.
    • Structures must still meet district building setback requirements.
    • An initial certificate of zoning compliance is required for all structures in agricultural districts.
    • No fee is charged for the initial certificate.
    • If land or a structure ceases to be used solely for agricultural purposes, the other zoning-code provisions apply.
    “The provisions of this Code shall not be exercised so as to impose regulations or require permits with respect to land used or to be used for agricultural purposes (as defined herein), or with respect to the erection, maintenance, repair, alteration, remodeling, or extension of buildings or structures used or to be used for agricultural purposes upon such land; except that said structures are required to meet building setback requirements applicable in the district in which the structure is to be built, and except that the initial certificate of zoning compliance (See Section 40-8-2 of the Zoning Code), shall be required of all structures in agricultural districts.”
  • Subdividing landRegulated (with conditions)

    Subdivision plat review and subdivision-related development administered by Clinton County Zoning.

    • The zoning office administers the Subdivision Ordinance.
    • Subdivision plats are reviewed and approved for use of private sewage disposal systems.
    • Floodplain data and standards apply to new subdivisions and related developments.
    “The zoning office also administers the Subdivision and Floodplain Ordinances.”
    2 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision plat review in areas administered by Clinton County zoning.
      “Subdivision Plats are reviewed and approved for the use of private sewage disposal systems.”
    • Regulated (with conditions) — Subdivision plat review in Clinton County county-zoning jurisdiction.
      “The zoning office also administers the Subdivision and Floodplain Ordinances.”
  • Driveway accessLimited

    New entrances or mailboxes required along a county highway.

    • The application directs applicants to the Clinton County Highway Department for a new entrance or mailbox along a county highway.
    • The reviewed source does not establish a universal driveway permit requirement for all roads.
    “To apply for a new entrance or mailbox required along a county highway, please contact:”
    One more reviewed finding on this topic
    • Limited — A new entrance or mailbox along a Clinton County highway.
      “To apply for a new entrance or mailbox required along a county highway, please contact:”
  • Building in a floodplainLimited

    Floodplain development in the Clinton County zoning jurisdiction.

    • The County Zoning Office administers the Floodplain Ordinance.
    • Specific floodplain application requirements and site-specific standards were not fully extracted.
    “The zoning office also administers the Subdivision and Floodplain Ordinances.”
    One more reviewed finding on this topic
    • Required — Development subject to Clinton County floodplain administration.
      “Landowners in the flood plain districts shall have a permit for such things as filling, dredging, grading, paving, bank stabilization, building, etc.”
  • Permit feesPublished

    Clinton County zoning certificates of compliance/building permits.

    • Fees are non-refundable.
    • The residential application states it was updated December 16, 2024.
    • Late-filing fees apply when a permit is not obtained; the agricultural late fee is $0.027 per square foot of structure, minimum $100.

    residential fee: 0.135 USD per square foot (Minimum $50) · commercial fee: 0.12 USD per square foot (Minimum $50) · industrial fee: 0.12 USD per square foot (Minimum $50) · mobile/manufactured-home fee: 0.135 USD per square foot (Minimum $50) · accessory use or home occupation up to 500 square feet: 25 USD · accessory use or home occupation 501-1000 square feet: 50 USD · communication tower fee: 36 USD per foot

    “Now therefore be it resolved by the Clinton County Board that the following fees are hereby established for Clinton County Zoning: Zoning Certificates of Compliance (Building Permit) Residential $0.135 per sq. ft. Min. fee: $50.00”
    One more reviewed finding on this topic
    • Published (with conditions) — County zoning certificates and related applications.
      “Residential $0.135 per sq. ft. Min. fee: $50.00”
  • Permit processPublished (with conditions)

    Private sewage disposal permit applications and installation in Clinton County, Illinois.

    • Applications must be made to the Board of Health or authorized representative with sufficient data for review.
    • The application must include applicant and site information, a complete plan with substantiating data if necessary, and other information required by the Health Authority.
    • The permit is limited to a homeowner and/or licensed private sewage disposal installation contractor.
    • The Board of Health may refuse permits where public or community sewage is available, subject to the stated distance and practical-connection rules.
    • The Health Department must act on applications within fifteen days of receipt.
    • The permit is valid for twelve months and is void if construction has not started within that period.
    • The Health Department must be notified of intended modification, change, or repair to determine whether a permit is required; routine cleaning, replacing septic tank covers, and rodding inlet and outlets do not require a construction permit.
    • A $125 fee is due with the application.
    • The system must be inspected and approved before covering or operation, and work requires at least 48 hours advance notice to the Health Department.

    application decision period: <= 15 days (Measured from receipt of the application.) · permit validity: 12 months (Permit is void if construction has not started within this period.) · pre-construction notice: >= 48 hours (Notice to the Health Department before commencement of work.)

    “The Board of Health or its Authorized Representative shall act upon all applications within fifteen (15) days of receipt thereof. Said permit to construct is valid for a period of twelve (12) months from the date of issuance. If construction has not started within this period, the permit is void.”
    One more reviewed finding on this topic
    • Published (with conditions) — Residential zoning certificate/building-permit process in Clinton County.
      “To apply for a Certificate of Zoning Compliance for a residence or structure that will contain a bathroom, a permit from the Clinton County Health Department is required prior to a building permit being issued.”

Illinois rules that apply here

  • Building code adoptedPartial

    Building-code requirements statewide in Illinois, including residential and commercial construction subject to the Capital Development Board Act baseline requirements.

    • Effective 2025-01-01, Illinois requires statewide baseline building-code requirements.
    • Local governments may adopt building codes, but they are not required to adopt codes; jurisdictions that do not adopt a code are treated as non-building-code jurisdictions and must follow the applicable state-law baseline requirements.
    • For jurisdictions with adopted codes, local codes must regulate structural design at least as stringently as the applicable IRC, IBC, or IEBC baseline.
    • Commercial buildings in non-building-code jurisdictions and state-funded buildings are subject to the state-listed codes and qualified-inspection requirements.
    • Residential requirements differ depending on whether the jurisdiction has adopted a compliant building code and whether the home purchaser and builder agree to an alternative code.

    statewide baseline effective date: 2025-01-01 · local code structural minimum for residential buildings: IRC minimum structural requirements · local code structural minimum for commercial new buildings: IBC minimum structural requirements · local code structural minimum for existing commercial buildings: IEBC minimum structural requirements

    “The State of Illinois recently passed legislation (Public Act 103-0510) changing the Capital Development Board Act to require statewide building codes effective 1/1/2025. [...] Commercial buildings in jurisdictions that have not adopted a building code AND state funded buildings. [...] Starting 1/1/25 local codes must regulate the structural design in a manner that is at least as stringent as the IBC© for new buildings or IEBC© for existing buildings. [...] Residential buildings in jurisdictions that have not adopted a building code where agreed to by the home purchaser and home builder. [...] Residential buildings in jurisdictions that have adopted a building code. [...] Starting 1/1/25 local codes must regulate the structural design in a manner that is at least as stringent as the IRC©.”
    2 more reviewed findings on this topic
    • Partial — Newly constructed commercial buildings in non-building-code jurisdictions, including applicable Clinton County areas.
      “After July 1, 2011, no person may occupy a newly constructed commercial building in a non-building code jurisdiction until: (1) The property owner or his or her agent has first contracted for the inspection of the building by an inspector who meets the qualifications established by the Board; and (2) The qualified inspector files a certification of inspection with the municipality or county having such jurisdiction over the property indicating that the building meets compliance with the building codes adopted by the Board for non-building code jurisdictions”
    • Adopted — Statewide baseline building-code requirements for residential construction in Illinois, including jurisdictions with and without locally adopted building codes.
      “Please be advised that the State of Illinois recently passed legislation (Public Act 103-0510) changing the Capital Development Board Act to require statewide baseline building codes effective 1/1/2025. Locally adopted building codes must comply with the requirements of the Act.”
  • InspectionsLimited

    Newly constructed commercial buildings in non-building-code jurisdictions.

    • Inspection must be performed by a qualified inspector.
    • A certification of inspection must be filed with the county or municipality.
    • The rule does not apply in a jurisdiction with a registered adopted building code.
    • New residential construction is exempt.
    “The qualified inspector files a certification of inspection with the municipality or county having such jurisdiction over the property indicating that the building meets compliance with the building codes adopted by the Board for non-building code jurisdictions”
    2 more reviewed findings on this topic
    • Not required — Building-code-compliance inspections performed by the State of Illinois for privately funded construction.
      “No. If any of these are required, they would be addressed by the unit of local government.”
    • Limited — Privately funded construction statewide in Illinois, as to inspections performed by the State rather than by a local authority having jurisdiction.
      “No. If any of these are required, they would be addressed by the unit of local government.”
  • Certificate of occupancyLimited

    Occupancy permits or certificates for privately funded construction in Illinois.

    • The State does not issue occupancy permits for privately funded construction.
    • If an occupancy permit is required, it is addressed by the applicable unit of local government.
    “No. If any of these are required, they would be addressed by the unit of local government.”
    One more reviewed finding on this topic
    • Not required — Issuance of occupancy permits or certificates by the State of Illinois for privately funded construction.
      “No. If any of these are required, they would be addressed by the unit of local government.”
  • Short-term rentalsLimited

    Short-term rentals in Illinois where at least one room is rented for fewer than 30 consecutive days and accommodations are reserved in advance, when the hosting platform meets the statutory definition of a re-renter.

    • Beginning July 1, 2025, qualifying hosting platforms are subject to Hotel Operators’ Occupation Tax.
    • The source establishes tax and registration obligations, not statewide land-use permission; local zoning and licensing may separately apply.

    rental period: < 30 consecutive days

    “Beginning July 1, 2025, hosting platforms for short-term rentals that meet the definition of “re-renter” are subject to Hotel Operators’ Occupation Tax.”
  • Campground & park staysAllowed (with conditions)

    Overnight camping in Illinois campgrounds subject to the Campground Licensing and Recreational Area Act.

    • IDPH annually inspects and licenses campgrounds in Illinois.
    • The state campground definition includes camping and temporary parking of recreational vehicles.
    • Campgrounds within home rule units of government are exempt from the state campground licensing requirement.
    • Recreational areas without overnight camping, such as highway rest stops and picnicking areas, are subject to the rules but are not licensed or routinely inspected.

    minimum persons for statutory campground threshold: >= 10 persons · minimum camping duration for statutory campground threshold: >= 6 camping days per calendar year

    ““Camping Day” means any 24 hour period or portion thereof during which the participants remain overnight at the site.”
  • county building authorityLimited

    County building-construction and building-code regulation, including residential structures, in counties meeting the statutory population and metropolitan-area conditions.

    • The county must have a population not in excess of 1,000,000.
    • The county must be located in the area served by the Northeastern Illinois Metropolitan Area Planning Commission.
    • Rules are subject to rules or regulations adopted by the State Fire Marshal under the cited gasoline and volatile-oils statute.
    • The county must exempt municipalities located wholly or partly within the county when the municipal building code is equal to the county regulation and local authorities are enforcing that municipal code.
    • The rules apply throughout the county, but municipalities may establish higher standards.
    • The rules do not apply to construction or alteration of buildings or structures used or to be used for agricultural purposes on a tract zoned and used for agricultural purposes.
    • The county board must follow the publication and posting requirements in 55 ILCS 5/5-1063.
    • Beginning on the effective date of the amendatory Act of the 92nd General Assembly, a county adopting a new building code or amending an existing building code must provide the building-code identification to the Capital Development Board under Section 10.18 at least 30 days before adoption.
    • Violations are petty offenses, and enforcement is by an officer designated by county-board resolution.
    • The provision expressly authorizes county building-construction and building-code rules, but the opened text does not expressly use the phrase residential building permit requirement.

    population threshold: <= 1000000 persons (The county must be located in the area served by the Northeastern Illinois Metropolitan Area Planning Commission.) · pre-adoption identification period: >= 30 days (Applies to a new building code or amendment under the stated amendatory-Act provision.)

    “The county board in any county with a population not in excess of 1,000,000 located in the area served by the Northeastern Illinois Metropolitan Area Planning Commission may prescribe by resolution or ordinance reasonable rules and regulations (a) governing the construction and alteration of all buildings and structures and parts and appurtenances thereof and governing the maintenance thereof in a condition reasonably safe from the hazards of fire, explosion, collapse, contagion and the spread of infectious disease”
    One more reviewed finding on this topic
    • General — Illinois counties adopting and enforcing building codes and issuing building permits for residential construction in unincorporated areas, subject to the statewide baseline framework.
      “A municipality or county is not required to adopt building codes. If they do NOT adopt a building code then they are considered a non-building code jurisdiction and section 10.09-1 of the Capital Development Board Act (20 ILCS 3105) applies. If they do adopt a building code(s) then it must comply with section 10.18 of the Capital Development Board Act (20 ILCS 3105).”

Still unanswered

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

  • Lot coverage — Lot-coverage limits.
  • Camping on your land — Temporary camping on private land.

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 Clinton County, Illinois

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

Clinton County scores 64/100 on the Bolthole Index, a strong county profile. Its strengths: workable self-sufficiency basics (43.1″/yr rainfall) and elevated current hazard exposure.

Do you need a building permit in Clinton County, Illinois?

Clinton County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Clinton County Health Department (Environmental Health / Private Sewage Disposal). 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 Clinton County?

Living in an RV on your own land in Clinton County is limited to specific cases: Recreational-vehicle occupancy for dwelling purposes in county zoning jurisdiction. RV dwelling occupancy is prohibited except in lawfully established commercial campgrounds. Temporary RV dwelling use may be permitted only after approval by the Clinton County Board of Appeals and signature by the Zoning Administrator. A tiny home is limited to specific cases. Confirm with the county before relying on it.

How much does land cost in Clinton County, Illinois?

Land in Clinton County runs about $9,036 per acre, based on the latest county data.

What is the water situation in Clinton County?

Clinton County gets about 43.1" of rain a year, with severe drought in roughly 1.7% of years.

How remote is Clinton County?

A representative private-land location has about 10,507 people within a 30-minute drive and 3,361,590 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 Clinton compares in Illinois

Compare side-by-side →See all 102 Illinois counties ranked →