County
· Illinois
Rock Island County
Rock Island County is a county located in the U.S. state of Illinois, bounded on the west by the Mississippi River. According to the 2020 census, it had a population of 144,672. Its county seat is Rock Island; its largest city is neighboring Moline. Rock Island County is one of the four counties that make up the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area.
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Cities and towns 15
- City of East Moline pop. 21,136
- City of Moline pop. 42,418
- City of Rock Island pop. 36,636
- City of Silvis pop. 7,952
- Village of Andalusia pop. 1,168
- Village of Carbon Cliff pop. 1,818
- Village of Coal Valley pop. 3,839
- Village of Cordova pop. 664
- Village of Hampton pop. 1,755
- Village of Hillsdale pop. 413
- Village of Milan pop. 5,039
- Village of Oak Grove pop. 470
- Village of Port Byron pop. 1,641
- Village of Rapids City pop. 950
- Village of Reynolds pop. 490
Townships 18
- Township of Andalusia pop. 2,242
- Township of Blackhawk pop. 9,426
- Township of Bowling pop. 3,330
- Township of Buffalo Prairie pop. 702
- Township of Canoe Creek pop. 588
- Township of Coal Valley pop. 4,413
- Township of Coe pop. 1,759
- Township of Cordova pop. 849
- Township of Drury pop. 746
- Township of Edgington pop. 1,408
- Township of Hampton pop. 21,557
- Township of Moline pop. 22,585
- Township of Port Byron pop. 1,370
- Township of Rock Island pop. 15,909
- Township of Rural pop. 996
- Township of South Moline pop. 36,171
- Township of South Rock Island pop. 18,178
- Township of Zuma pop. 680
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 102554
- FIPS state
- 17
- FIPS county
- 161
- FIPS place
- 99161
- Census record name
- COUNTY OF ROCK ISLAND
- Mailing address
- 1504 3RD AVE, ROCK ISLAND 61201