THE PENNINGTON COUNTY LAND BRIEF
Land in the
Lake Agassiz Plains setting.
Pennington County has 616.5 square miles of land in Minnesota. 3 mapped landscape regions meet across Pennington County: Lake Agassiz Plains, Beach Ridges and Sand Deltas, Peatlands.
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
Pennington County intersects 3 mapped regional units. The largest mapped shares are:
- Lake Agassiz Plains63.9%
- Beach Ridges and Sand Deltas33.9%
- Peatlands2.2%
Northern Minnesota Wetlands in Pennington County
Former glacial lake basins form nearly level terrain with extensive wetlands and boreal vegetation. Marsh, swamp and forest patterns are central to this northern Minnesota landscape.
Read the regional source ↗Finding your parcel within Pennington County
The atlas lists 24 cities, towns, townships, and Census communities associated with Pennington County, including Sanders, Star, Highlanding. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Pennington County by land and water
The Census records 1.68 square miles of water within Pennington County, or 0.3% of its total area. That share is close to Pennington County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Pennington County has 17.1 times the land area of nearby Smiley township (36 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Beltrami County, Clearwater County, Marshall County, Polk County, Red Lake County within Minnesota. A tract near one of these lines should be matched to the county identifier on its own records.

