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Warren County, Illinois
County in Illinois, United States / From Wikipedia, the free encyclopedia
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Warren County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 16,835.[1] Its county seat is Monmouth.[2]
Quick Facts Country, State ...
Warren County | |
---|---|
![]() Warren County Courthouse in Monmouth | |
![]() Location within the U.S. state of Illinois | |
![]() Illinois's location within the U.S. | |
Coordinates: 40°51′N 90°37′W | |
Country | ![]() |
State | ![]() |
Founded | 1825 |
Named for | Joseph Warren |
Seat | Monmouth |
Largest city | Monmouth |
Area | |
• Total | 543 sq mi (1,410 km2) |
• Land | 542 sq mi (1,400 km2) |
• Water | 0.6 sq mi (2 km2) 0.1% |
Population (2020) | |
• Total | 16,835 |
• Density | 31/sq mi (12/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional districts | 15th, 17th |
Website | www |
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