Demographics & People — Rock Island County, Illinois
Population & Households
| Population (official) | 143,819 |
|---|---|
| Median Age | 40.20 |
| Veterans | 8,560 |
| Housing Units | 66,731 |
| Uninsured | 1,702 |
Migration
| Inflow | 126,055 |
|---|---|
| Outflow | 127,761 |
| Net | -1,706 |
| Growing | No |
| Year | 2022-2023 |
Source: Census ACS 5-Year 2022. Official numbers: Census ACS 5-Year 2022 — county-level query.
Data provenance: aggregated from town-level sources, county.json. Rebuilt 2026-04-13T15:43:27.743294+00:00; aggregated 2026-04-13T16:08:23.003340+00:00.