Mohave County, AZ zoning map, flood zone and property lines by address
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Towns in Mohave County: Lake Havasu City, Bullhead City, Kingman.
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 Mohave County has 385 FIRM panels, the newest effective October 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 Mohave 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 Arizona county parcel layers (each county publishes its own), so a Mohave lot shows the same lines the county assessor draws. Mohave County covers about 8,532,557 acres of land and 82,382 acres of water.
Mapped lines are approximate. The Mohave County assessor keeps the parcel record (Mohave County website); a licensed surveyor sets the true corners.
Zoning
Mohave County zones its unincorporated land, and Lake Havasu City, Bullhead City, Kingman each zone the land inside their limits. ParcelSheet shows the use the county assessor 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 Arizona's county zoning law (Arizona Revised Statutes Title 11, Chapter 6, Article 2, starting at 11-811), local governments can allow an accessory dwelling unit on a lot with a house. Whether a Mohave 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. Mohave County is soil survey area AZ625, Mohave County Area, Arizona, Northeastern Part, and Part of Coconino County, last updated August 2026, on Web Soil Survey.
A new or changed septic system in Mohave County needs a permit from the Mohave County environmental services or health department, under authority delegated by the Arizona Department of Environmental Quality.
Setbacks
Setbacks in Mohave 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 Lake Havasu City, Bullhead City, Kingman for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Mohave lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Mohave 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 Mohave County has 385 panels, the newest effective October 2025. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Mohave County?
Open the Arizona map, type the address, and the parcel outline from the Mohave County 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 Mohave County?
Zoning in Mohave County is set by the county for unincorporated land and by each city (such as Lake Havasu City, Bullhead City) inside its own limits. ParcelSheet shows the use code the county assessor lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Mohave County?
Under Arizona's county zoning law (Arizona Revised Statutes Title 11, Chapter 6, Article 2, starting at 11-811), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Mohave 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 Mohave County?
Yes. A new or changed septic system in Mohave County needs a permit from the Mohave County environmental services or health department, under authority delegated by the Arizona Department of Environmental Quality. ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area AZ625 (Mohave County Area, Arizona, Northeastern Part, and Part of Coconino County).
What can I build on 5 acres in Mohave County?
Zoning in Mohave County is set by the county for unincorporated land and each city inside its own limits (such as Lake Havasu City, Bullhead City). 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 Mohave County website.
What are the residential setbacks in Mohave County (2026)?
Setbacks in Mohave 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 Mohave County website.
Next to Mohave County: Coconino County, La Paz County, Yavapai County.
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