Leake County, Mississippi has not published a county residential building-permit office or process that we could confirm, so ask the County Administrator before starting work.1 Leake County's county-hosted hazard plan says the county has no zoning ordinance, although the City of Carthage has its own zoning ordinance and building code.2 Septic applications and site evaluation go through the Mississippi State Department of Health.3
At a glance
- Building permit
- County residential requirement and process not confirmed1
- Zoning
- No Leake County zoning ordinance; municipal rules can differ2
- Septic
- Apply through the Mississippi State Department of Health3
- RV living
- Private-land occupancy rule not confirmed; ask the County Administrator4
- Tiny home
- County occupancy and construction rules not confirmed1
- Owner-builder
- State residential-builder licensing exemption is available, but permits may still apply5
- Private well
- Groundwater permit required at the stated casing threshold; some exclusions apply6
Who to call
Building permits
County contact for questions about an unincorporated parcel when no building-permit office or process is published
PO Box 595, Carthage, MS 39051
Planning & zoning
County-hosted planning record for zoning and local building-code status
Septic permits
Mississippi State Department of Health Division of On-Site Wastewater
On-site wastewater applications, water-meter wastewater approval and application assistance for Leake County
570 East Woodrow Wilson Drive, Jackson, MS 39216
Roads & driveways
County-road access and right-of-way questions
312 C.O. Brooks, Carthage, MS 39051
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Leake County, Mississippi?
We could not confirm Leake County's countywide residential building-permit requirement, inspection schedule or certificate-of-occupancy process from a published county source.1 Mississippi's statewide framework says counties and municipalities must enact uniform building codes unless they opted out before the stated deadline, but that framework does not establish Leake County's current adoption status.7 The county-hosted planning record says only that the City of Carthage adopted a building code; it does not say Leake County adopted one.2
Before construction in unincorporated Leake County, give the County Administrator the parcel number, site address and project description and ask whether a permit, plan review, trade permit, inspection or occupancy approval applies. The official county directory lists the County Administrator at 601-267-8002 and PO Box 595, Carthage, MS 39051.8 A project inside Carthage should go to the city because the county-hosted plan identifies a city building code.2
Who handles building permits in Leake County, and how do you reach them?
Leake County does not publish a building department or residential permit application that we could confirm, so the practical county starting point is the County Administrator.1 The county directory lists that office at 601-267-8002, [email protected] and PO Box 595, Carthage, MS 39051.8 Ask the office to identify the authority for building, electrical, plumbing, mechanical, floodplain and occupancy review on the exact parcel before paying a contractor or ordering a structure.
Mississippi permitting can vary by location, and state guidance says city or county permits may apply to business construction and land development.9 An owner building or improving the owner's residence may qualify for Mississippi's residential-builder licensing exemption, but that licensing exemption does not remove a locally required permit or inspection.5 For land on a county road, Leake County Road and Bridge is listed at 601-267-4123 and 312 C.O. Brooks, Carthage, MS 39051.10
Does Leake County have zoning?
Leake County's county-hosted hazard plan states that Leake County does not have a zoning ordinance.2 The same record says the City of Carthage has adopted a zoning ordinance, so the no-zoning answer should not be carried into Carthage or another municipality.2 County zoning status also does not answer every question about septic approval, floodplain development, road access, utility service, private restrictions or construction permits.
For an unincorporated parcel, ask the County Administrator whether any subdivision covenant, floodplain review, road setback or other county approval affects the proposed use. For land inside a municipality, ask that municipality for its zoning map and development standards before relying on the county answer. The county-hosted record also says Leake County has not adopted a county comprehensive land-use plan or subdivision ordinance, while Carthage has municipal versions of both.2 That planning record does not confirm a minimum dwelling size or countywide residential setback, so those details remain questions for the relevant local office.
How do septic permits work in Leake County?
The Mississippi State Department of Health Division of On-Site Wastewater handles Leake County on-site wastewater review and conducts the site and soil evaluation.3 A permit is required for installation of an on-site wastewater system and for the water-meter process described by MSDH.11 Apply online through MSDH, or call the Wastewater Call Center at 1-855-220-0192 for application help.12
Start septic review before fixing the house location. Only 1% of mapped Leake County soils are rated without severe limitations for a conventional septic drain field, so a parcel-level evaluation may point to a different design.13 Mississippi requires wastewater to go to a central sewer or septic system and does not allow gray water to be discharged onto the ground, into a ditch or into a body of water.14 A permanent sewage-disposal solution must be available before a permanent water-meter connection.11
Can you live in an RV or tiny home on your land in Leake County?
We could not confirm a Leake County rule that allows or prohibits long-term RV living, temporary camping, tiny-home occupancy or manufactured-home occupancy on private land.4 The county's lack of a zoning ordinance does not by itself settle sanitation, utility, floodplain, building or occupancy requirements.2 Ask the County Administrator about the exact parcel and intended use before moving a unit onto the land.8
The published Pearl River Valley Water Supply District RV rules apply only to campgrounds under that district's jurisdiction and do not answer whether someone may occupy an RV on private land.15 Any occupied house, trailer, manufactured home or other residential structure that generates wastewater needs an acceptable sewage solution through the MSDH process.11 Mississippi also does not recognize gray water as a separate discharge category, so off-grid plans must route all wastewater to an approved sewer or septic system.14
Building a home in Leake County: the steps, in order
First, determine whether the parcel is in unincorporated Leake County or a municipality, because Carthage has its own zoning ordinance and building code.2
Second, call the County Administrator at 601-267-8002 to confirm the building-permit authority, inspections, floodplain review and any occupancy approval for an unincorporated parcel.8
Third, apply to the Mississippi State Department of Health for on-site wastewater review before locking in the house, driveway and well locations.3
Fourth, contact Leake County Road and Bridge about access from a county road; its published number is 601-267-4123.10 A new or altered driveway connecting to a Mississippi state highway requires an MDOT permit.16
Fifth, confirm whether the owner-builder licensing exemption fits the project without assuming it waives permits or inspections.5
Finally, obtain every approval the responsible offices identify before construction or occupancy.
What to check before you buy land in Leake County
Put wastewater feasibility near the top of the due-diligence list because only 1% of mapped Leake County soils are rated without severe limits for a conventional drain field.13 The county averages 58.4 inches of precipitation annually, which makes drainage, wet-season access and house-pad placement worth checking on the ground.17 About 79.4% of the land has a slope of 15% or less, but a parcel survey and site visit still matter.18
Confirm legal access and driveway approval with the road owner; Leake County Road and Bridge handles county-road questions, while MDOT requires permits for new or altered state-highway driveways.1016 Ask the County Administrator which local floodplain process applies because the available state floodplain claim covers state-owned property, not an ordinary private parcel.19 Leake County's effective property-tax rate is 0.7%, and the median property-tax bill is $775 per year.2021
Watch-outs
- Do not treat the lack of a county zoning ordinance as proof that an RV, tiny home or any structure can be occupied without other approvals.2
- Septic feasibility can change the usable building area because only 1% of mapped soils avoid severe conventional drain-field limitations.13
- Carthage has its own zoning ordinance and building code, so county answers do not replace city review for property inside Carthage.2
Sources
- Miss. Code Ann. §19-5-9(11) (2026 county census)
- Leake County planning record (leakecountyms.org)
- Mississippi State Department of Health - On-Site Wastewater (2026 county census)
- (2026 county census)
- 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
- Leake County Administrator (leakecountyms.org)
- Start Your Business in Mississippi — County and City Permits (Mississippi statewide rule), quoted and re-checked
- Leake County Road and Bridge (leakecountyms.org)
- Wastewater Frequently Asked Questions, quoted and re-checked
- Mississippi State Department of Health Division of On-Site Wastewater (msdh.ms.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Wastewater Frequently Asked Questions, quoted and re-checked
- General Campground Rules and Policies - Ross Barnett Reservoir (Mississippi statewide rule), quoted and re-checked
- Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Mississippi Administrative Code — State Property Floodplain Regulations (Mississippi statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 28, 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.