Mercer County, Illinois
Mercer County is a county in the U.S. state of Illinois. In the 2020 census, 15,699 people lived there.[1] The county seat is Aledo.
Mercer County, Illinois Media
Mercer County at the time of its creation in 1825
Mercer County in 1827, reduced to its present borders
References
- ↑ "QuickFacts: Mercer County, Illinois". United States Census Bureau. Retrieved August 11, 2023.
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