Rock Island is a city in Rock Island County, Illinois, United States, and its county seat. The population was 37,108 at the 2020 census. Located at the confluence of the Rock and Mississippi rivers, it is one of the Quad Cities along with neighboring Moline and East Moline in Illinois and the cities of Davenport and Bettendorf in Iowa. The Quad Cities metropolitan area had a population of 384,324 in 2020.
AdFind discounts on the best RockIslandIllinois. Tripadvisor helps you spend less. Save money & book with Tripadvisor, the world's largest travel website.
Candid traveller photos · Easy price comparison · Millions of hotel reviews