THE SULLIVAN COUNTY LAND BRIEF
Land in the
Glaciated Wabash Lowlands setting.
Sullivan County has 447.2 square miles of land in Indiana. 2 mapped landscape regions meet across Sullivan County: Glaciated Wabash Lowlands, Wabash-Ohio Bottomlands.
Broad terraced river valleys contrast with wooded slopes and dissected glacial plains. Bottomland settings and upland oak landscapes occur close together across the Interior River Valleys and Hills.
Regional context: Interior River Valleys and Hills ↗ · Regional mapping across the county footprint
Where the landscape changes
Sullivan County intersects 2 mapped regional units. The largest mapped shares are:
- Glaciated Wabash Lowlands87.5%
- Wabash-Ohio Bottomlands12.5%
Finding your parcel within Sullivan County
The atlas lists 23 cities, towns, townships, and Census communities associated with Sullivan County, including Haddon, Gill, Hamilton. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Sullivan County by land and water
The Census records 6.92 square miles of water within Sullivan County, or 1.5% of its total area. That share is close to Sullivan County’s 1.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Sullivan County has 238.5 times the land area of nearby Sullivan city (1.88 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Clay County, Greene County, Knox County, Vigo County within Indiana. A tract near one of these lines should be matched to the county identifier on its own records.