St. Clair County

County population

Year	Population
1980.	264177
1990.	262852
2000.	256082
2010.	270056

Details St. Clair County St. Clair County

www.co.st-clair.il.us

Illinois

St. Clair County

County

17163

County seat is in Belleville
Founded in 1790
Area: 664 square miles
County board has 30 members
FIPS code: 17163


Zipcodes in St. Clair County: 62243, 62240, 62207, 62206, 62205, 62204, 62203, 62202, 62201, 62208, 62289, 62285, 62282, 62258, 62255, 62059, 62254, 62257, 62071, 62264, 62260, 62269, 62239, 62221, 62220, 62223, 62222, 62225, 62224, 62226, 62232

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