Wyandotte County, KS zoning map, flood zone and property lines by address
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Towns in Wyandotte County: Kansas City, Bonner Springs, Edwardsville.
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 Wyandotte County has 42 FIRM panels, the newest effective September 2015; 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 Wyandotte 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 Wyandotte lot shows the same lines the county appraiser draws. Wyandotte County covers about 97,048 acres of land and 2,916 acres of water.
Mapped lines are approximate. The Wyandotte County appraiser keeps the parcel record (Wyandotte County website); a licensed surveyor sets the true corners.
Zoning
Wyandotte County zones its unincorporated land, and Kansas City, Bonner Springs, Edwardsville each zone the land inside their 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 Wyandotte 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. Wyandotte County is soil survey area KS209, Wyandotte County, Kansas, last updated August 2026, on Web Soil Survey.
A new or changed septic system in Wyandotte County needs a permit from the Wyandotte County sanitarian (under the county sanitary code and Kansas Department of Health and Environment standards).
Setbacks
Setbacks in Wyandotte 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 Kansas City, Bonner Springs, Edwardsville for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Wyandotte lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Wyandotte 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 Wyandotte County has 42 panels, the newest effective September 2015. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Wyandotte County?
Open the Kansas map, type the address, and the parcel outline from the Wyandotte 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 Wyandotte County?
Zoning in Wyandotte County is set by the county for unincorporated land and by each city (such as Kansas City, Bonner Springs) 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 Wyandotte 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 Wyandotte 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 Wyandotte County?
Yes. A new or changed septic system in Wyandotte County needs a permit from the Wyandotte 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 KS209 (Wyandotte County, Kansas).
What can I build on 5 acres in Wyandotte County?
Zoning in Wyandotte County is set by the county for unincorporated land and each city inside its own limits (such as Kansas City, Bonner Springs). 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 Wyandotte County website.
What are the residential setbacks in Wyandotte County (2026)?
Setbacks in Wyandotte 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 Wyandotte County website.
Next to Wyandotte County: Johnson County, Leavenworth County.
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