Demographics & People — Ada County, Idaho
Population & Households
| Population (official) | 497,494 |
|---|---|
| Median Age | 38.10 |
| Veterans | 32,099 |
| Housing Units | 198,516 |
| Uninsured | 5,271 |
Migration
| Inflow | 503,543 |
|---|---|
| Outflow | 491,968 |
| Net | 11,575 |
| 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 2026-04-13T15:43:27.524474+00:00; aggregated 2026-04-13T16:08:22.814924+00:00.