Demographics & People — Williamson County, Texas
Population & Households
| Population (official) | 617,396 |
|---|---|
| Median Age | 36.90 |
| Veterans | 38,460 |
| Housing Units | 240,082 |
| Uninsured | 10,776 |
Migration
| Inflow | 713,039 |
|---|---|
| Outflow | 668,133 |
| Net | 44,906 |
| 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 2026-04-13T15:43:30.851096+00:00; aggregated 2026-04-13T16:08:25.975184+00:00.