THE LEE COUNTY LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Lee County has 724.8 square miles of land in Illinois. 3 mapped landscape regions meet across Lee County: Illinois/Indiana Prairies, Sand Area, Rock River Hills.
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
Lee County intersects 3 mapped regional units. The largest mapped shares are:
- Illinois/Indiana Prairies68.4%
- Sand Area17.6%
- Rock River Hills14.1%
Finding your parcel within Lee County
The atlas lists 37 cities, towns, townships, and Census communities associated with Lee County, including Sublette, Lee Center, Brooklyn. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Lee County by land and water
The Census records 3.78 square miles of water within Lee County, or 0.5% of its total area. That share is close to Lee County’s 0.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Lee County has 752.6 times the land area of nearby Lee Center CDP (0.96 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Bureau County, DeKalb County, LaSalle County, Ogle County, Whiteside County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.

