| Place Name | Rock Island |
| Place Type | City |
| ZIP Code(s) | 61201 |
| County | Rock Island County |
| Area Code(s) | 309 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 38,808 |
| Population Growth Rate (2010-19) | -4.90% |
| Majority Ethnicity | White 64.04% |
| Metro/Micro Stats Area | Davenport-Moline-Rock Island, IA-IL |
| US Congressional District(s) | Illinois 17th |
| State House Districts | 72 |
| State Senate Districts | 36 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 64.04% |
| African American | 17.88% |
| Hispanic | 0.36% |
| Asian | 4.32% |
| Native American | 0.46% |
| Hawaiin/Pacific Islander | 12.92% |