Jefferson Davis County, Mississippi does not publish a confirmed residential building-permit process for unincorporated land, so ask the Board of Supervisors what approvals and inspections apply before work begins.12 Septic permits come from the Mississippi State Department of Health, and a lot of two acres or more may qualify for an affidavit exemption.34
At a glance
- Building permit
- County process and enforcement are unconfirmed; ask the Board of Supervisors12
- Zoning
- Countywide zoning status is unconfirmed5
- Septic
- MSDH permit required for new systems; lots of 2 acres or more may qualify for an affidavit exemption64
- RV living
- Private-land occupancy rule is unconfirmed5
- Tiny home
- Occupancy and minimum-size rules are unconfirmed5
- Owner-builder
- State licensing exemption applies when its conditions are met; local approvals are not waived7
- Private well
- State withdrawal permit applies at the specified casing-size threshold, subject to exclusions8
Who to call
Building permits
Jefferson Davis County Board of Supervisors
First county contact to identify the office responsible for unincorporated-area building, zoning, floodplain and county-road questions
purchasing@co.jefferson-davis.ms.us
P.O. Box 1317, Prentiss, MS 39474-1317
Septic permits
Jefferson Davis County Health Department
Local health-department contact for coordinating with the state onsite-wastewater program
1185-A Frontage Road, Prentiss, MS 39474
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in Jefferson Davis County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Jefferson Davis County, Mississippi?
Jefferson Davis County does not publish a confirmed residential building-permit office, application or inspection schedule for unincorporated property, so do not treat the silence as an exemption.1 Mississippi law directs counties to require permitting as a condition of construction in unincorporated areas, but Jefferson Davis County's local administration and enforcement could not be confirmed.1 Mississippi's uniform-code framework says counties and municipalities must enact uniform building codes unless they opted out before the applicable deadline, but it does not establish Jefferson Davis County's present code status.9 The State Fire Marshal has adopted the state fire-prevention code for specified building categories, not a general county residential code.10 Before ordering plans, grading a site or signing a construction contract, give the Board of Supervisors the parcel location and project description and ask which permit, code, inspection and occupancy requirements apply.21
Who handles Jefferson Davis County building permits and inspections?
No dedicated Jefferson Davis County building department or codes office is confirmed, making the Jefferson Davis County Board of Supervisors the practical first county contact.12 The Board lists 601-792-4336 and a mailing address at P.O. Box 1317 in Prentiss.2 Ask the Board to identify who reviews residential construction in the parcel's jurisdiction, which code applies, what plans are required, when inspections occur and whether an occupancy approval is needed.12 Mississippi's owner-builder exemption can remove the state residential-builder licensing requirement when a person undertakes construction or improvement on that person's own residence or acts as the general contractor for that work.7 The exemption concerns contractor licensing and does not establish an exemption from locally required permits or inspections.7
Does Jefferson Davis County, Mississippi have zoning?
Jefferson Davis County's countywide zoning status remains unconfirmed because no authoritative county zoning ordinance, district map or zoning-office page establishes the answer.5 An unconfirmed zoning status does not mean that unincorporated land is unrestricted.5 Minimum lot size, minimum dwelling size, setbacks, lot coverage, building height, manufactured-home rules and subdivision procedures also lack confirmed county answers.5 Ask the Board of Supervisors for a parcel-specific determination and for the text of any ordinance that governs the proposed use.25 If the parcel lies inside Prentiss, Bassfield or another incorporated municipality, ask that municipality separately because Mississippi permit requirements vary by location and city rules do not automatically describe unincorporated Jefferson Davis County.11 A driveway connecting to a Mississippi state highway requires an MDOT access permit for a new driveway or an alteration to an existing drive.12
How do septic permits work in Jefferson Davis County?
The Mississippi State Department of Health administers individual onsite wastewater systems in Jefferson Davis County, and a permit is required for installation and for a water-meter application.36 A local Environmentalist performs a soil and site evaluation before the permit is issued.6 The installer must notify MSDH at least 24 hours before installation so an inspection can be scheduled with the county health department.4
A lot or tract of two acres or more is exempt from department approval if all wastewater stays on the tract, no watercourse is affected and the installer files a signed affidavit; the state's Notice of Intent plus exemption option is listed at $100, against $197.50 for Notice of Intent plus final approval.413 Fees can change and offline filing may cost more.13 Wastewater must go to a central sewer or a septic system, and gray water may not be discharged on the ground, ditches or water bodies.14 A permanent sewer or septic solution must be in place before a permanent water meter can be connected.15
The Jefferson Davis County Health Department is at 1185-A Frontage Road in Prentiss and lists 601-792-5135.1617 Only about 25.8% of county soils are rated without severe limitations for a conventional drain field, so make wastewater feasibility an early purchase contingency.18
Can you live in an RV or tiny home in Jefferson Davis County?
Long-term RV occupancy, temporary camping and tiny-home occupancy on private land in Jefferson Davis County remain unconfirmed.5 The same is true for minimum dwelling size, setbacks and accessory-dwelling standards, so the lack of a published county zoning answer is not permission to occupy a unit.5 Ask the Board of Supervisors to identify the parcel rule and describe whether the unit will be temporary or permanent, whether it has wheels, and how water and wastewater will be handled.25 Mississippi's cited campground rules apply only to campgrounds under the Pearl River Valley Water Supply District and do not answer the private-land question in Jefferson Davis County.19 A permanent water meter requires a permanent sewer or septic solution, and septic installation requires an MSDH permit.156
Building a home in Jefferson Davis County: the steps, in order
- Ask the Jefferson Davis County Board of Supervisors which building approval, code, inspection, floodplain and occupancy requirements apply to the parcel.21
- Obtain a parcel-specific zoning answer and confirm setbacks, minimum size, manufactured-home treatment and subdivision limits because the countywide rules remain unconfirmed.52
- Apply to MSDH before fixing the house location; the process starts with an application and fee, then a soil and site evaluation, then the permit.20
- Secure the required wastewater permit and permanent sewage solution before requesting a permanent water meter, having the installer give 24 hours' notice so an inspection can be scheduled through the county health department.615417
- If acting as your own builder, document that the project meets the state's owner-builder licensing exemption without assuming it waives local approvals.7
- Obtain an MDOT access permit before creating or altering a driveway onto a state highway.12
- If a private well has a surface casing diameter of 6 inches or more, obtain the state groundwater-withdrawal permit, subject to exclusions.8
What should you check before buying land in Jefferson Davis County?
Start with wastewater feasibility because about 25.8% of Jefferson Davis County soils are rated without severe limitations for a conventional septic drain field.18 The county receives about 60.4 inches of precipitation annually, so inspect drainage, standing-water patterns and the proposed house and septic areas during wet conditions.21 About 79.8% of county land has a slope of 15% or less, while about 75.2% is wooded; verify the actual tract's clearing, drainage and grading needs rather than relying on county averages.2223 Farmland value averages about $3,188 per acre, and the typical home value is about $99,263.2425 The effective property-tax rate is about 0.8%, with a median annual bill near $728.2627 Before closing, confirm legal access, floodplain requirements, land-use rules and every construction approval directly with the Board of Supervisors.215
Watch-outs
- Jefferson Davis County's building-permit process, inspection schedule and certificate-of-occupancy requirements remain unconfirmed; ask the Board of Supervisors before construction.12
- Countywide zoning, setbacks and minimum dwelling size remain unconfirmed, so obtain a parcel-specific answer before buying an RV, tiny home or manufactured home.52
- Only about 25.8% of county soils are rated without severe limitations for a conventional septic drain field.18
- A permanent water meter requires a permanent sewage solution, and the MSDH permit must be presented to the water utility to get the meter.156
Sources
- Miss. Code Ann. §19-5-9(11) (2026 county census)
- Jefferson Davis County Board of Supervisors (co.jefferson-davis.ms.us)
- On-Site Wastewater, quoted and re-checked
- Current Regulations, quoted and re-checked
- (2026 county census)
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
- Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), quoted and re-checked
- Mississippi Uniform Building Codes (Mississippi statewide rule), quoted and re-checked
- Fire Code Enforcement, quoted and re-checked
- Start Your Business in Mississippi — County and City Permits (Mississippi statewide rule), quoted and re-checked
- Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
- On-Site Wastewater application FAQ — Mississippi State Department of Health, quoted and re-checked
- On-Site Wastewater application FAQ — Mississippi State Department of Health, quoted and re-checked
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
- Jefferson Davis County Health Department (msdh.ms.gov)
- 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
- General Campground Rules and Policies - Ross Barnett Reservoir (Mississippi statewide rule), quoted and re-checked
- Notice of Intent: New Individual On-site Wastewater Disposal System, Form 908, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
- Typical home value (Zillow): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 10, 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.