LIST OF COUNTIES IN ILLINOIS

The links in the column FIPS County Code are to the Census Bureau Info page for that county.
Listed are the 102 counties in the state of Illinois.

Contents

Current counties

Defunct counties

See also

External links and sources

Current counties

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Defunct counties

★ Dane County was renamed in 1840 to the current Christian County.

★ The original Knox County, Illinois, became extinct with the formation of the Illinois Territory in 1809 - or, more precisely, it became Knox County, Indiana. The modern Knox County, Illinois was formed much later, and was not a part of the original Knox County.

See also

★ Illinois

★ List of Illinois county name etymologies

★ List of cities in Illinois

★ List of towns and villages in Illinois

★ List of Illinois townships

★ List of Illinois precincts

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External links and sources

★ Census 2000 Gazetteer

★ Illinois Association of County Board Members and Commissioners

★ Illinois City/County Management Association

★ National Association of Counties