Demographics & People — San Mateo County, California
Population & Households
| Population (official) | 754,250 |
|---|---|
| Median Age | 40.30 |
| Veterans | 20,300 |
| Housing Units | 284,211 |
| Uninsured | 3,228 |
Migration
| Inflow | 692,660 |
|---|---|
| Outflow | 713,283 |
| Net | -20,623 |
| Growing | No |
| Year | 2022-2023 |
Source: Census ACS 5-Year 2022. Official numbers: Census ACS 5-Year 2022 — county-level query.