Mississippi
Buying Land in Simpson County, Mississippi
County seat Mendenhall, in central Mississippi. Simpson County has no central zoning office -- by the county's own description, zoning here is handled by separate local offices rather than one countywide authority -- but the Board of Supervisors adopted a genuinely new countywide building-permit ordinance for unincorporated areas in January 2025, requiring 2021 building-code compliance and contractor registration. Here's what that recent change, plus septic and local poultry activity, mean for land here.
Zoning here runs through separate local offices, not one county authority
Simpson County describes its own zoning structure plainly: there is no central county office that oversees zoning regulations countywide. Instead, zoning is managed through separate local offices, each holding jurisdiction over a particular area of the county. That's a genuinely distinctive governance structure worth understanding on its own terms rather than assuming it works like either a fully zoned county (with one comprehensive ordinance and map) or a fully unzoned one (with no zoning authority anywhere). For a land buyer, the practical effect is the same first step either way: contact the county's Community Development Department directly, describe your parcel's specific location, and ask which office (if any) has zoning jurisdiction there before assuming a particular use is permitted or restricted.
Mendenhall, the county seat, and Magee, roughly 12 miles to the south and the county's other significant town, each maintain their own separate municipal zoning and permitting systems for land inside their respective city limits -- so a parcel's proximity to either town is a genuinely relevant fact, not just a matter of distance to services.
A new countywide building-permit ordinance, effective January 2025
Separate from the zoning-jurisdiction question, Simpson County's Board of Supervisors unanimously adopted a new ordinance on January 6, 2025 regulating building permits for both residential and commercial construction across the county's unincorporated areas. The ordinance adopts the 2021 International Residential Code (IRC) and the 2021 International Building Code (IBC) as the applicable construction standards, and requires anyone building or remodeling a new commercial or residential structure to obtain a permit through the Office of Community Development, with specific documentation required before a permit is issued.
The ordinance also introduced an annual permit/registration requirement for general contractors, HVAC installers, electricians, and plumbers who want to operate in unincorporated Simpson County. Because this rule is barely a year old as of this page's 2026 review, don't rely on an older description of Simpson County's construction requirements -- confirm current permit fees, required documentation, and contractor-registration status directly with the Office of Community Development (contact: Daniel Ferguson, communitydevelopment@co.simpson.ms.us, 601-675-2366) before budgeting for a build on any Simpson County parcel. For the specific dollar figures -- the $50 annual contractor-registration fee, the $5,000 performance bond and $300,000-per-occurrence insurance minimum that apply above $50,000 in new construction or $10,000 in remodeling, and the $150 failed-inspection fee -- see this county's dedicated building-on-raw-land page.
Poultry context, septic, and water rules
Simpson County has some real poultry-industry presence -- broiler operations around Magee and at least one multi-house poultry farm near Mendenhall -- reflecting the same general central-Mississippi broiler belt that makes neighboring Scott County a major production hub, though at a noticeably smaller and less centralized scale here. If you're evaluating land near an existing poultry operation, or considering building broiler houses yourself, confirm the applicable MDEQ setback distances (150 feet from adjoining property lines, 600 feet from non-owned occupied dwellings, for a typical dry-litter operation) and permit requirements directly with MDEQ's Environmental Permits Division.
Septic permitting follows Mississippi's statewide MSDH framework, administered locally through the county health department, with the standard requirement for a Licensed Professional Evaluator to conduct the soil evaluation and a Licensed Installer to build the system. Water use follows the state's standard rules: ordinary household wells sit well under the 20,000-gallon-per-day MDEQ reporting threshold, but any parcel with an existing poultry-operation water system, irrigation, or a commercial well should have that status confirmed directly with MDEQ's Office of Land and Water Resources before you buy.
Who to Call Before Buying Land in Simpson County
Findings rely on WebSearch-indexed content, including local news coverage of the January 2025 building-permit ordinance, rather than a full verbatim read of county code; confirm current zoning jurisdiction, permit fees, and contractor-registration requirements directly with Simpson County before relying on this page.
Planning & Zoning
Simpson County Community Development / Office of Community Development
Confirming which local office (if any) has zoning jurisdiction over a specific parcel, and building permits under the county's January 2025 ordinance (2021 IRC/IBC).
Septic / Onsite Wastewater
Simpson County Health Department
Septic site evaluation and permitting under the statewide MSDH standard.
Recorder / Clerk / Land Records
Simpson County Chancery Clerk
Recorded deeds, easements, and plats.
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Sources
- Permits and Zoning — Simpson County, Mississippi (accessed 2026-09)
- What the new permit ordinances mean for county residents — Magee Courier-Simpson County News (accessed 2026-09)
- Simpson County — Simpson County, Mississippi (accessed 2026-09)
- Setback Distances for Poultry Houses — Mississippi State University Extension Service (accessed 2026-09)
- Simpson County, Mississippi — Wikipedia (accessed 2026-09)
Last reviewed 2026-09