Illinois · United States
Rock Island population
38,620people · latest figure
Rock Island has a population of 38,620, making it the 1136th largest place we list in United States. It is in Illinois.
Rock Island holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 228 times its size. Twenty years earlier the World Gazetteer recorded 38,383, almost unchanged.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
Rock Island is in Illinois, which has 945 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Gainesville | Georgia | 38,712 |
| The Acreage | Florida | 38,704 |
| Kailua | Hawaii | 38,635 |
| Whitney | Nevada | 38,585 |
| Oviedo | Florida | 38,551 |
| Carpentersville | Illinois | 38,512 |
All places in United States → · Illinois →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.