THE WALNUT GROVE LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Walnut Grove township has 35.6 square miles of land in Knox County. Its Census reference point is in Illinois/Indiana Prairies, within Central Corn Belt Plains.
Glaciated plains historically supported tallgrass prairie mixed with oak and hickory woodland. Dark prairie soils and broad farming landscapes distinguish much of the Central Corn Belt.
Regional context: Central Corn Belt Plains ↗ · Classification at the Census reference point
Walnut Grove and Knox County
Walnut Grove is associated with Knox 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.
Walnut Grove by land and water
The Census records 0.12 square miles of water within Walnut Grove, or 0.3% of its total area. It is 0.2 percentage points lower than the 0.5% recorded for Knox County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Walnut Grove township has 37.9 times the land area of nearby Altona village (0.94 square miles). These areas describe boundaries, not comparable property prices.

