THE GRAND PRAIRIE LAND BRIEF
Land in the
Southern Illinoian Till Plain setting.
Grand Prairie township has 36.2 square miles of land in Jefferson County. Its Census reference point is in Southern Illinoian Till Plain, within Interior River Valleys and Hills.
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 ↗ · Classification at the Census reference point
Grand Prairie and Jefferson County
Grand Prairie is associated with Jefferson 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.
Grand Prairie by land and water
The Census records 0.11 square miles of water within Grand Prairie, or 0.3% of its total area. It is 1.8 percentage points lower than the 2.2% recorded for Jefferson County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Grand Prairie township has 35.9 times the land area of nearby Irvington village (1.01 square miles). These areas describe boundaries, not comparable property prices.

