THE JOHNSTOWN LAND BRIEF
Land in the
Glacial Lake Agassiz Basin setting.
Johnstown township has 36.2 square miles of land in Grand Forks County. Its Census reference point is in Glacial Lake Agassiz Basin, within Lake Agassiz Plain.
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 ↗ · Classification at the Census reference point
Johnstown and Grand Forks County
Johnstown is associated with Grand Forks County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Johnstown by land and water
The Census records 0 square miles of water within Johnstown, or 0% of its total area. It is 0.2 percentage points lower than the 0.2% recorded for Grand Forks County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Johnstown township has 72.3 times the land area of nearby Forest River city (0.5 square miles). These areas describe boundaries, not comparable property prices.

