THE CLAY COUNTY LAND BRIEF
Land in the
Glacial Lake Agassiz Basin setting.
Clay County has 1,045.2 square miles of land in Minnesota. 4 mapped landscape regions meet across Clay County: Glacial Lake Agassiz Basin, Lake Agassiz Plains, Alexandria Moraines and Detroit Lakes Outwash Plain, among others.
The former bed of glacial Lake Agassiz forms an exceptionally flat plain in the Red River valley. Thick lake sediments overlie older glacial deposits across this historic prairie landscape.
Regional context: Lake Agassiz Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Clay County intersects 4 mapped regional units. The largest mapped shares are:
- Glacial Lake Agassiz Basin68.6%
- Lake Agassiz Plains12.6%
- Alexandria Moraines and Detroit Lakes Outwash Plain10.3%
- Beach Ridges and Sand Deltas8.4%
North Central Hardwood Forests in Clay County
This transition between northern forests and southern farming country includes lakes, wetlands and hardwood woodland. Glacial landforms support a mosaic of open land and wooded areas.
Read the regional source ↗Finding your parcel within Clay County
The atlas lists 42 cities, towns, townships, and Census communities associated with Clay County, including Kragnes, Georgetown, Alliance. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Clay County by land and water
The Census records 7.45 square miles of water within Clay County, or 0.7% of its total area. That share is close to Clay County’s 0.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Clay County has 29.4 times the land area of nearby Spring Prairie township (35.6 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Becker County, Norman County, Otter Tail County, Wilkin County within Minnesota. A tract near one of these lines should be matched to the county identifier on its own records.

