Lawrence County, MO zoning map, flood zone and property lines by address
Free, no account. Or open the Missouri map and tap a lot.
Towns in Lawrence County: Aurora, Mount Vernon, Marionville.
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 Lawrence County has 41 FIRM panels, the newest effective August 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 a Lawrence 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 Missouri county parcel layers (each county publishes its own), so a Lawrence lot shows the same lines the county assessor draws. Lawrence County covers about 391,522 acres of land and 1,040 acres of water.
Mapped lines are approximate. The Lawrence County assessor keeps the parcel record (Lawrence County website); a licensed surveyor sets the true corners.
Zoning
Lawrence County zones its unincorporated land, and Aurora, Mount Vernon, Marionville 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 Missouri's county planning and zoning law (Revised Statutes of Missouri Chapter 64), local governments can allow an accessory dwelling unit on a lot with a house. Whether a Lawrence 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. Lawrence County is soil survey area MO109, Lawrence County, Missouri, last updated August 2026, on Web Soil Survey.
A new or changed septic system in Lawrence County needs a permit from the Lawrence County health department, or the county's other designated onsite authority (Missouri Department of Health and Senior Services onsite wastewater program).
Setbacks
Setbacks in Lawrence 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 Aurora, Mount Vernon, Marionville for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Lawrence lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Lawrence 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 Lawrence County has 41 panels, the newest effective August 2012. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Lawrence County?
Open the Missouri map, type the address, and the parcel outline from the Lawrence 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 Lawrence County?
Zoning in Lawrence County is set by the county for unincorporated land and by each city (such as Aurora, Mount Vernon) 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 Lawrence County?
Under Missouri's county planning and zoning law (Revised Statutes of Missouri Chapter 64), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Lawrence 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 Lawrence County?
Yes. A new or changed septic system in Lawrence County needs a permit from the Lawrence County health department, or the county's other designated onsite authority (Missouri Department of Health and Senior Services onsite wastewater program). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area MO109 (Lawrence County, Missouri).
What can I build on 5 acres in Lawrence County?
Zoning in Lawrence County is set by the county for unincorporated land and each city inside its own limits (such as Aurora, Mount Vernon). 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 Lawrence County website.
What are the residential setbacks in Lawrence County (2026)?
Setbacks in Lawrence 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 Lawrence County website.
Next to Lawrence County: Barry County, Christian County, Dade County, Greene County, Jasper County, Newton County, Stone County.
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