Jewell County, KS zoning map, flood zone and property lines by address
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Towns in Jewell County: Mankato.
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 has 21 FIRM panels covering Jewell County, the newest effective January 2026; 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 a Jewell 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 Kansas county parcel layers (each county publishes its own), so a Jewell lot shows the same lines the county appraiser draws. Jewell County covers about 582,381 acres of land and 2,809 acres of water.
Mapped lines are approximate. The Jewell County appraiser keeps the parcel record (Jewell County website); a licensed surveyor sets the true corners.
Zoning
Jewell County zones its unincorporated land, and Mankato zones the land inside its limits. ParcelSheet shows the use the county appraiser lists for the lot and links the county planning and zoning office for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Kansas's planning and zoning law for cities and counties (Kansas Statutes 12-741 and following), local governments can allow an accessory dwelling unit on a lot with a house. Whether a Jewell lot can add one depends on its district; the county planning and 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. Jewell County is soil survey area KS089, Jewell County, Kansas, last updated August 2026, on Web Soil Survey.
A new or changed septic system in Jewell County needs a permit from the Jewell County sanitarian (under the county sanitary code and Kansas Department of Health and Environment standards).
Setbacks
Setbacks in Jewell 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 Mankato for land inside its limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Jewell lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Jewell County?
Type the address in the box above and ParcelSheet reads FEMA's flood zone at the lot's center. FEMA has 21 flood map panels covering Jewell County, the newest effective January 2026. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Jewell County?
Open the Kansas map, type the address, and the parcel outline from the Jewell County appraiser 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 Jewell County?
Zoning in Jewell County is set by the county for unincorporated land and by each city (such as Mankato) inside its own limits. ParcelSheet shows the use code the county appraiser lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Jewell County?
Under Kansas's planning and zoning law for cities and counties (Kansas Statutes 12-741 and following), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Jewell 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 Jewell County?
Yes. A new or changed septic system in Jewell County needs a permit from the Jewell County sanitarian (under the county sanitary code and Kansas Department of Health and Environment standards). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area KS089 (Jewell County, Kansas).
What can I build on 5 acres in Jewell County?
Zoning in Jewell County is set by the county for unincorporated land and each city inside its own limits (such as Mankato). 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. See the Jewell County website.
What are the residential setbacks in Jewell County (2026)?
Setbacks in Jewell 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. See the Jewell County website.
Next to Jewell County: Cloud County, Mitchell County, Osborne County, Republic County, Smith County.
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