Issaquena County, MS zoning map, flood zone and property lines by address
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Towns in Issaquena County: Mayersville.
Flood zone by address
ParcelSheet reads FEMA's National Flood Hazard Layer at the lot: the zone, whether it is a high risk area where lenders ask for flood insurance, and the base flood elevation where FEMA lists one. FEMA's countywide study for Issaquena County has 22 FIRM panels, the newest effective February 2012; no coastal V zones are mapped in it.
The official panel and any Letter of Map Amendment are at FEMA's Map Service Center. An elevation certificate for an Issaquena house comes from a licensed surveyor and is often on file with the county or city building office.
Property lines
The parcel outline, parcel number and mapped size come from the Mississippi county parcel layers (each county publishes its own), so an Issaquena lot shows the same lines the county tax assessor draws. Issaquena County covers about 264,307 acres of land and 18,203 acres of water.
Mapped lines are approximate. The Issaquena County tax assessor keeps the parcel record; a licensed surveyor sets the true corners.
Zoning
Issaquena County zones its unincorporated land, and Mayersville zones the land inside its limits. ParcelSheet shows the use the county tax assessor lists for the lot and links the county planning or zoning office for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Mississippi's zoning and planning law (Mississippi Code Title 17, Chapter 1), local governments can allow an accessory dwelling unit on a lot with a house. Whether an Issaquena lot can add one depends on its district; the county planning or zoning office has the rule. ParcelSheet shows the mapped lot size and the ground's slope, the first two things the question turns on.
Septic and soil
ParcelSheet reads the USDA soil survey at the lot: the soil's name, its septic absorption rating and whether it is prime farmland. Issaquena County is soil survey area MS055, Issaquena County, Mississippi, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Issaquena County needs approval from the Issaquena County health department environmentalist (Mississippi State Department of Health on-site wastewater program).
Setbacks
Setbacks in Issaquena County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; the county zoning office gives them for the lot's district, and Mayersville for land inside its limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near an Issaquena lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Issaquena County?
Type the address in the box above and ParcelSheet reads FEMA's flood zone at the lot's center. FEMA's countywide flood map for Issaquena County has 22 panels, the newest effective February 2012. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Issaquena County?
Open the Mississippi map, type the address, and the parcel outline from the Issaquena County tax assessor shows on the map with its parcel number and mapped size. Mapped lines are approximate; only a licensed surveyor sets the true corners.
What is my property zoned in Issaquena County?
Zoning in Issaquena County is set by the county for unincorporated land and by each city (such as Mayersville) inside its own limits. ParcelSheet shows the use code the county tax assessor lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Issaquena County?
Under Mississippi's zoning and planning law (Mississippi Code Title 17, Chapter 1), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Issaquena County ask the zoning office for the lot's district first; ParcelSheet shows the lot size as mapped so you can see the room you have.
Do I need a septic permit in Issaquena County?
Yes. A new or changed septic system in Issaquena County needs approval from the Issaquena County health department environmentalist (Mississippi State Department of Health on-site wastewater program). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area MS055 (Issaquena County, Mississippi).
What can I build on 5 acres in Issaquena County?
Zoning in Issaquena County is set by the county for unincorporated land and each city inside its own limits (such as Mayersville). The zoning district decides the uses, how many homes and the smallest lot it allows on 5 acres. ParcelSheet shows the lot size as mapped and the use code on the parcel record; the planning office has the district and its rules.
What are the residential setbacks in Issaquena County (2026)?
Setbacks in Issaquena County come from the zoning code of the county, or of the city when the lot is inside city limits: the front, side and rear distances depend on the lot's district. ParcelSheet does not draw setback lines or give a number it did not read; the zoning office gives them for the district.
Next to Issaquena County: Sharkey County, Warren County, Washington County, Yazoo County.
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