Monroe County, Illinois
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Monroe County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 34,962. Its county seat and largest city is Waterloo. Monroe County is included in
Monroe County Courthouse in Waterloo
J. B. Bridge during the flood of 1993
Columbia, Illinois
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Columbia is a city mainly in Monroe County with a small portion in St. Clair County in the U.S. state of Illinois, about 12 miles south of St. Louis, Missouri. The population was 10,999 at the 2020 ce
Downtown Columbia