THE PRAIRIE COUNTY LAND BRIEF
Land in the
Montana Central Grasslands setting.
Prairie County has 1,736.6 square miles of land in Montana. 4 mapped landscape regions meet across Prairie County: Montana Central Grasslands, River Breaks, Missouri Plateau, among others.
Rolling semiarid plains are punctuated by buttes, badlands and river breaks. Much of the regional terrain developed on sandstone, siltstone and shale without the leveling influence of continental glaciers.
Regional context: Northwestern Great Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Prairie County intersects 4 mapped regional units. The largest mapped shares are:
- Montana Central Grasslands69.2%
- River Breaks17.9%
- Missouri Plateau12.5%
- Sagebrush Steppe0.4%
Finding your parcel within Prairie County
The atlas lists 2 cities, towns, townships, and Census communities associated with Prairie County, including Fallon, Terry. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Prairie County by land and water
The Census records 5.83 square miles of water within Prairie County, or 0.3% of its total area. That share is close to Prairie County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Prairie County has 2,223.6 times the land area of nearby Terry town (0.78 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Custer County, Dawson County, Fallon County, Garfield County, McCone County, Wibaux County within Montana. A tract near one of these lines should be matched to the county identifier on its own records.

