THE PERRY COUNTY LAND BRIEF
Land in the
Southern Illinoian Till Plain setting.
Perry County has 441.9 square miles of land in Illinois. The mapped landscape region in Perry County is Southern Illinoian Till Plain.
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
Finding your parcel within Perry County
The atlas lists 6 cities, towns, townships, and Census communities associated with Perry County, including Du Quoin, Pinckneyville, Tamaroa. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Perry County by land and water
The Census records 5.1 square miles of water within Perry County, or 1.1% of its total area. That share is close to Perry County’s 1.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Perry County has 107.6 times the land area of nearby Pinckneyville city (4.11 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Franklin County, Jackson County, Jefferson County, Randolph County, Washington County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.

