Demographics & People — Lee County, Illinois
Population & Households
| Population (official) | 34,221 |
|---|---|
| Median Age | 42.80 |
| Veterans | 1,945 |
| Housing Units | 14,993 |
| Uninsured | 99 |
Migration
| Inflow | 29,916 |
|---|---|
| Outflow | 30,585 |
| Net | -669 |
| 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 2026-04-13T15:43:27.680621+00:00; aggregated 2026-04-13T16:08:22.950761+00:00.