Demographics & People — Washtenaw County, Michigan
Population & Households
| Population (official) | 370,231 |
|---|---|
| Median Age | 34.40 |
| Veterans | 13,097 |
| Housing Units | 157,103 |
| Uninsured | 1,610 |
Migration
| Inflow | 315,538 |
|---|---|
| Outflow | 323,736 |
| Net | -8,198 |
| 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 2026-04-13T15:43:28.598358+00:00; aggregated 2026-04-13T16:08:23.795549+00:00.