THE CHAMPAIGN COUNTY LAND BRIEF
Land in the
Mad River Interlobate Area setting.
Champaign County has 429 square miles of land in Ohio. 3 mapped landscape regions meet across Champaign County: Mad River Interlobate Area, Loamy High Lime Till Plains, Darby Plains.
Rolling glacial till plains are interrupted by end moraines and areas of older, more dissected deposits. The historical landscape had more tree cover than the Central Corn Belt to the west.
Regional context: Eastern Corn Belt Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Champaign County intersects 3 mapped regional units. The largest mapped shares are:
- Mad River Interlobate Area66.4%
- Loamy High Lime Till Plains17%
- Darby Plains16.5%
Finding your parcel within Champaign County
The atlas lists 20 cities, towns, townships, and Census communities associated with Champaign County, including Salem, Urbana, Mad River. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Champaign County by land and water
The Census records 0.84 square miles of water within Champaign County, or 0.2% of its total area. That share is close to Champaign County’s 0.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Champaign County has 51.5 times the land area of nearby Urbana city (8.33 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Clark County, Logan County, Madison County, Miami County, Shelby County, Union County within Ohio. A tract near one of these lines should be matched to the county identifier on its own records.

