Toole County, MT zoning map, flood zone and property lines by address
Free, no account. Or open the Montana map and tap a lot.
Towns in Toole County: Shelby.
Property lines
The parcel outline, parcel number and mapped size come from the Montana State Library, Montana Cadastral (MSDI), from Department of Revenue records, so a Toole lot shows the same lines the Montana Department of Revenue draws. Toole County covers about 1,225,513 acres of land and 19,281 acres of water.
Mapped lines are approximate. The Montana Department of Revenue keeps the parcel record (Toole County website); a licensed surveyor sets the true corners.
Zoning
Toole County zones its unincorporated land, and Shelby zones the land inside its limits. ParcelSheet shows the use the Montana Department of Revenue lists for the lot and links the county planning office for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Montana's county zoning laws (Montana Code Annotated Title 76, Chapter 2, Parts 1 and 2), local governments can allow an accessory dwelling unit on a lot with a house. Whether a Toole lot can add one depends on its district; the county planning 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. Toole County is soil survey area MT101, Toole County, Montana, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Toole County needs a permit from the Toole County sanitarian (local health department, under Montana DEQ standards).
Setbacks
Setbacks in Toole 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 Shelby for land inside its limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Toole lot and the Forest Service wildfire hazard rating at it.
Questions
How do I find property lines in Toole County?
Open the Montana map, type the address, and the parcel outline from the Montana Department of Revenue 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 Toole County?
Zoning in Toole County is set by the county for unincorporated land and by each city (such as Shelby) inside its own limits. ParcelSheet shows the use code the Montana Department of Revenue lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Toole County?
Under Montana's county zoning laws (Montana Code Annotated Title 76, Chapter 2, Parts 1 and 2), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Toole 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 Toole County?
Yes. A new or changed septic system in Toole County needs a permit from the Toole County sanitarian (local health department, under Montana DEQ standards). ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area MT101 (Toole County, Montana).
What can I build on 5 acres in Toole County?
Zoning in Toole County is set by the county for unincorporated land and each city inside its own limits (such as Shelby). 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 Toole County website.
What are the residential setbacks in Toole County (2026)?
Setbacks in Toole 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 Toole County website.
Next to Toole County: Glacier County, Liberty County, Pondera County.
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