Rock Island County, Illinois
Rock Island County is a county in the U.S. state of Illinois. In the 2020 census, 144,672 people lived there.[1] The county seat is Rock Island.
Rock Island County, Illinois Media
- Rock Island County Illinois 1831.png
Rock Island County at the time of its creation in 1831
References
- ↑ "QuickFacts: Rock Island County, Illinois". United States Census Bureau. Retrieved August 11, 2023.