THE JERSEY COUNTY LAND BRIEF
Land in the
Western Dissected Illinoian Till Plain setting.
Jersey County has 369.6 square miles of land in Illinois. 5 mapped landscape regions meet across Jersey County: Western Dissected Illinoian Till Plain, River Hills, Upper Mississippi Alluvial Plain, among others.
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
Jersey County intersects 5 mapped regional units. The largest mapped shares are:
- Western Dissected Illinoian Till Plain52.2%
- River Hills39.3%
- Upper Mississippi Alluvial Plain7.8%
- Southern Illinoian Till Plain0.5%
- Middle Mississippi Alluvial Plain0.3%
Finding your parcel within Jersey County
The atlas lists 19 cities, towns, townships, and Census communities associated with Jersey County, including Jersey, Richwood, English. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Jersey County by land and water
The Census records 7.85 square miles of water within Jersey County, or 2.1% of its total area. That share is close to Jersey County’s 2.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Jersey County has 367.4 times the land area of nearby Otterville town (1.01 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Calhoun County, Greene County, Macoupin County, Madison County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.