THE MCPHERSON COUNTY LAND BRIEF
Land in the
Missouri Coteau setting.
McPherson County has 1,136.7 square miles of land in South Dakota. 3 mapped landscape regions meet across McPherson County: Missouri Coteau, Drift Plains, Missouri Coteau Slope.
Glaciated plains bridge the wetter eastern prairie and the drier, more broken Great Plains. Numerous prairie potholes and other seasonal or persistent wetlands are characteristic regional landforms.
Regional context: Northwestern Glaciated Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
McPherson County intersects 3 mapped regional units. The largest mapped shares are:
- Missouri Coteau76.7%
- Drift Plains20.2%
- Missouri Coteau Slope3.1%
Northern Glaciated Plains in McPherson County
Flat to gently rolling glacial terrain supports a prairie transition between taller and shorter grasses. Many temporary and seasonal wetlands occupy depressions left in the glacial landscape.
Read the regional source ↗Finding your parcel within McPherson County
The atlas lists 13 cities, towns, townships, and Census communities associated with McPherson County, including Weber, Hoffman, Carl. The list includes overlapping geography types and does not divide the county into exclusive service areas.
McPherson County by land and water
The Census records 14.9 square miles of water within McPherson County, or 1.3% of its total area. That share is close to McPherson County’s 1.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, McPherson County has 4,103.5 times the land area of nearby Long Lake town (0.28 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brown County, Campbell County, Edmunds County, Walworth County within South Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

