THE MCCOOK COUNTY LAND BRIEF
Land in the
James River Lowland setting.
McCook County has 574.2 square miles of land in South Dakota. 2 mapped landscape regions meet across McCook County: James River Lowland, Prairie Coteau.
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.
Regional context: Northern Glaciated Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
McCook County intersects 2 mapped regional units. The largest mapped shares are:
- James River Lowland91.9%
- Prairie Coteau8.1%
Finding your parcel within McCook County
The atlas lists 23 cities, towns, townships, and Census communities associated with McCook County, including Sun Prairie, Brookfield, Pearl. The list includes overlapping geography types and does not divide the county into exclusive service areas.
McCook County by land and water
The Census records 2.66 square miles of water within McCook County, or 0.5% of its total area. That share is close to McCook County’s 0.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, McCook County has 16 times the land area of nearby Richland township (35.9 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Hanson County, Hutchinson County, Lake County, Miner County, Minnehaha County, Turner County within South Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

