THE TAZEWELL COUNTY LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Tazewell County has 646.5 square miles of land in Illinois. 4 mapped landscape regions meet across Tazewell County: Illinois/Indiana Prairies, Sand Area, River Hills, among others.
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
Tazewell County intersects 4 mapped regional units. The largest mapped shares are:
- Illinois/Indiana Prairies59.1%
- Sand Area20.1%
- River Hills14.2%
- Upper Mississippi Alluvial Plain6.6%
Interior River Valleys and Hills in Tazewell County
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.
Read the regional source ↗Finding your parcel within Tazewell County
The atlas lists 38 cities, towns, townships, and Census communities associated with Tazewell County, including Spring Lake, Washington, Groveland. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Tazewell County by land and water
The Census records 11.5 square miles of water within Tazewell County, or 1.7% of its total area. That share is close to Tazewell County’s 1.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Tazewell County has 547.9 times the land area of nearby Tremont village (1.18 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Fulton County, Logan County, Mason County, McLean County, Peoria County, Woodford County within Illinois. A tract near one of these lines should be matched to the county identifier on its own records.

