Monroe County (Ill.)
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Other Identifiers
Sources of Information
- GeoNames, algorithmically matched, 2009
Wikipedia description:
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 the St. Louis, MO-IL Metropolitan Statistical Area. It is located in the southern portion of Illinois known historically as "Little Egypt".
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