THE IROQUOIS COUNTY LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Iroquois County has 1,117.4 square miles of land in Illinois. 2 mapped landscape regions meet across Iroquois County: Illinois/Indiana Prairies, 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
Iroquois County intersects 2 mapped regional units. The largest mapped shares are:
- Illinois/Indiana Prairies75%
- Sand Area25%
Finding your parcel within Iroquois County
The atlas lists 47 cities, towns, townships, and Census communities associated with Iroquois County, including Chebanse, Ashkum, Ash Grove. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Iroquois County by land and water
The Census records 1.63 square miles of water within Iroquois County, or 0.1% of its total area. That share is close to Iroquois County’s 0.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Iroquois County has 30.7 times the land area of nearby Crescent township (36.4 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Ford County, Kankakee County, Vermilion County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.

