Thomas County, NE zoning map, flood zone and property lines by address
Free, no account. Or open the Nebraska map and tap a lot.
Towns in Thomas County: Thedford.
Property lines
The parcel outline, parcel number and mapped size come from the NebraskaMAP statewide parcel layer (from each county assessor), so a Thomas lot shows the same lines the county assessor draws. Thomas County covers about 456,034 acres of land and 516 acres of water.
Mapped lines are approximate. The Thomas County assessor keeps the parcel record (Thomas County website); a licensed surveyor sets the true corners.
Zoning
Thomas County zones its unincorporated land, and Thedford zones the land inside its limits. ParcelSheet shows the use the county assessor lists for the lot and links the county zoning office for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Nebraska's county zoning law (Neb. Rev. Stat. 23-114) and each city's zoning powers, local governments can allow an accessory dwelling unit on a lot with a house. Whether a Thomas lot can add one depends on its district; the county 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. Thomas County is soil survey area NE171, Thomas County, Nebraska, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Thomas County must be registered with the Nebraska Department of Environment and Energy onsite wastewater program (Title 124).
Setbacks
Setbacks in Thomas 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 Thedford for land inside its limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Thomas lot and the Forest Service wildfire hazard rating at it.
Questions
How do I find property lines in Thomas County?
Open the Nebraska map, type the address, and the parcel outline from the Thomas 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 Thomas County?
Zoning in Thomas County is set by the county for unincorporated land and by each city (such as Thedford) 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 Thomas County?
Under Nebraska's county zoning law (Neb. Rev. Stat. 23-114) and each city's zoning powers, counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Thomas 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 Thomas County?
Yes. A new or changed septic system in Thomas County must be registered with the Nebraska Department of Environment and Energy onsite wastewater program (Title 124). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area NE171 (Thomas County, Nebraska).
What can I build on 5 acres in Thomas County?
Zoning in Thomas County is set by the county for unincorporated land and each city inside its own limits (such as Thedford). 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 Thomas County website.
What are the residential setbacks in Thomas County (2026)?
Setbacks in Thomas 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 Thomas County website.
Next to Thomas County: Blaine County, Cherry County, Hooker County, Logan County, McPherson County.
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