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Where is Warren County, Illinois?

location of Warren county on a map

Warren County is a county equivalent area found in Illinois, USA. The county government of Warren is found in the county seat of Monmouth.

With a total 1,406.5 sq. km of land and water area, Warren County, Illinois is the 2028th largest county equivalent area in the United States. Home to 17,874 people, Warren County has a total 7662 households earning 43536 on average per year.

Warren County, Illinois - Quick Facts

FIPS Code 17187
Area Codes 309
Time Zone CST
Major Cities Monmouth (population: 11,656), Roseville (population: 1,669), Kirkwood (population: 922), Little York (population: 774), Cameron (population: 682), Smithshire (population: 289), Berwick (population: 259), Gerlaw (population: 116)
Land Area 6,901 sq miles
Water Area 542 sq miles
Household Income $43,536
Housing Units 7,662
Median Home Value $81,500
High School Grads 88% of population
Holders of Bachelors Degrees 21% of population
Retail Spending $7,602 per capita
Food & Accomodation Sales $14,251 per capita

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This page was last updated on June 30, 2016.