Mercer County, Illinois
county in Illinois, United States / From Wikipedia, the free encyclopedia
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 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.