Demographics & People — Grundy County, Illinois
Population & Households
| Population (official) | 52,624 |
|---|---|
| Median Age | 38.80 |
| Veterans | 3,235 |
| Housing Units | 21,195 |
| Uninsured | 348 |
Migration
| Inflow | 53,347 |
|---|---|
| Outflow | 53,341 |
| Net | 6 |
| Growing | Yes |
| 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 2026-04-13T15:43:27.635274+00:00; aggregated 2026-04-13T16:08:22.912526+00:00.