Where is Saint Clair County, Illinois?

location of Saint Clair county on a map — Location of Saint Clair County within the state of Illinois

Saint Clair County is a county equivalent area found in Illinois, USA. The county government of Saint Clair is found in the county seat of Belleville.

With a total 1,745.73 sq. km of land and water area, Saint Clair County, Illinois is the 1511th largest county equivalent area in the United States. Home to 265,729 people, Saint Clair County has a total 117589 households earning 50578 on average per year.

Saint Clair County, Illinois - Quick Facts

FIPS Code	17163
Area Codes	618
Time Zone	CST
Major Cities	Belleville (population: 95,241), East Saint Louis (population: 58,042), O Fallon (population: 31,208), Fairview Heights (population: 17,298), Mascoutah (population: 9,158), Millstadt (population: 7,257), Caseyville (population: 7,227), Lebanon (population: 6,061), Freeburg (population: 5,883), Scott AFB (population: 5,357)
Land Area	102,598 sq miles
Water Area	658 sq miles
Household Income	$50,578
Housing Units	117,589
Median Home Value	$123,700
High School Grads	90% of population
Holders of Bachelors Degrees	25% of population
Retail Spending	$11,818 per capita
Food & Accomodation Sales	$615,352 per capita
Universities and Colleges	Vees School of Beauty Culture