Demographics & People — Winnebago County, Illinois
Population & Households
| Population (official) | 284,591 |
|---|---|
| Median Age | 39.50 |
| Veterans | 14,820 |
| Housing Units | 125,039 |
| Uninsured | 2,313 |
Migration
| Inflow | 253,133 |
|---|---|
| Outflow | 255,132 |
| Net | -1,999 |
| 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 2026-04-13T15:43:27.784747+00:00; aggregated 2026-04-13T16:08:23.037820+00:00.