THE MARSHALL COUNTY LAND BRIEF
Land in the
Prairie Coteau setting.
Marshall County has 838.1 square miles of land in South Dakota. 7 mapped landscape regions meet across Marshall County: Prairie Coteau, Glacial Lake Basins, Glacial Lake Deltas, among others.
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
Marshall County intersects 7 mapped regional units. The largest mapped shares are:
- Prairie Coteau39.8%
- Glacial Lake Basins26.1%
- Glacial Lake Deltas12.1%
- Prairie Coteau Escarpment10.4%
- Drift Plains6.9%
Finding your parcel within Marshall County
The atlas lists 35 cities, towns, townships, and Census communities associated with Marshall County, including Veblen, La Belle, Victor. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Marshall County by land and water
The Census records 48.1 square miles of water within Marshall County, or 5.4% of its total area. That share is close to Marshall County’s 5.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Marshall County has 26.9 times the land area of nearby Hamilton township (31.2 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Brown County, Day County, Roberts County within South Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

