Mercer County, ND zoning map, flood zone and property lines by address
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Towns in Mercer County: Beulah, Hazen, Stanton.
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 Mercer County has 59 FIRM panels, the newest effective March 2025; 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 Mercer 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 North Dakota GIS Hub parcel layer (from each county), so a Mercer lot shows the same lines the county director of tax equalization draws. Mercer County covers about 667,380 acres of land and 44,682 acres of water.
Mapped lines are approximate. The Mercer County director of tax equalization keeps the parcel record (Mercer County website); a licensed surveyor sets the true corners.
Zoning
In North Dakota zoning is set by the county, the township or the city, depending on where the lot is: in Mercer County, Beulah, Hazen, Stanton each zone the land inside their limits. ParcelSheet shows the use code on the lot's parcel record and the municipality it sits in; the county, township or city zoning office has the district, the uses it allows and the lot size it needs. The Mercer County website lists the county's municipalities.
ADU and guest houses
Under North Dakota's zoning laws (N.D. Cent. Code chapters 11-33 for counties and 40-47 for cities), the county, the township or the city, depending on where the lot is can allow an accessory dwelling unit on a lot with a house. Whether a Mercer lot can add one depends on its district; the county, township or city 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. Mercer County is soil survey area ND057, Mercer County, North Dakota, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Mercer County needs a permit from the Mercer County local public health unit (installers are licensed by the ND Department of Environmental Quality).
Setbacks
Setbacks in Mercer County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; the county, township or city zoning office gives them for the lot's district, and Beulah, Hazen, Stanton for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Mercer lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Mercer 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 Mercer County has 59 panels, the newest effective March 2025. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Mercer County?
Open the North Dakota map, type the address, and the parcel outline from the Mercer County director of tax equalization 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 Mercer County?
Zoning in Mercer County is set by the county, the township or the city, depending on where the lot is (such as Beulah, Hazen). ParcelSheet shows the use code on the parcel record and names the municipality; the county, township or city zoning office has the final word.
Can I build an ADU in Mercer County?
Under North Dakota's zoning laws (N.D. Cent. Code chapters 11-33 for counties and 40-47 for cities), the county, the township or the city, depending on where the lot is can allow an accessory dwelling unit, and each sets its own rules. In Mercer County ask the county, township or city 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 Mercer County?
Yes. A new or changed septic system in Mercer County needs a permit from the Mercer County local public health unit (installers are licensed by the ND Department of Environmental Quality). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area ND057 (Mercer County, North Dakota).
What can I build on 5 acres in Mercer County?
Zoning in Mercer County is set by the county, the township or the city, depending on where the lot is (such as Beulah, Hazen). 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 county, township or city zoning office has the district and its rules. See the Mercer County website.
What are the residential setbacks in Mercer County (2026)?
Setbacks in Mercer County come from the zoning code of the municipality the lot sits in: 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 county, township or city zoning office gives them for the district. See the Mercer County website.
Next to Mercer County: Dunn County, McLean County, Morton County, Oliver County, Stark County.
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