Rock Island
City in Illinois
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Rock Island is a city in and the county seat of Rock Island County, Illinois, United States. The population was 37,108 at the 2020 census. Wikipedia
Population: 36,256 (2022)
ZIP Codes: 61201, 61204, 61264, 61299
Area code: Area code 309
Area: 17.07 mi²
Sales tax rate: 8.5%
Incorporated: 1841