THE WILL COUNTY LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Will County has 835.9 square miles of land in Illinois. 3 mapped landscape regions meet across Will County: Illinois/Indiana Prairies, Valparaiso-Wheaton Morainal Complex, Sand Area.
Glaciated plains historically supported tallgrass prairie mixed with oak and hickory woodland. Dark prairie soils and broad farming landscapes distinguish much of the Central Corn Belt.
Regional context: Central Corn Belt Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Will County intersects 3 mapped regional units. The largest mapped shares are:
- Illinois/Indiana Prairies47.3%
- Valparaiso-Wheaton Morainal Complex41.5%
- Sand Area11.1%
Finding your parcel within Will County
The atlas lists 83 cities, towns, townships, and Census communities associated with Will County, including Joliet, Aurora, Washington. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Will County by land and water
The Census records 13.3 square miles of water within Will County, or 1.6% of its total area. That share is close to Will County’s 1.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Will County has 22.7 times the land area of nearby Manhattan township (36.8 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Cook County, DuPage County, Grundy County, Kankakee County, Kendall County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.

