San Mateo County: Foreign-Born Population Trend
How San Mateo County's foreign-born population changed from 2017 to 2023, based on U.S. Census Bureau ACS 5-Year Estimates. The 2019 vintage reflects the pre-COVID peak; 2021 captures the immediate COVID-era disruption; 2022–2023 show the recovery.
2017
13.1%
2023
7.8%
Total change
-5.3 pp
% change
-40.5%
| Year | Foreign-Born Population | Change |
|---|---|---|
| 2017 | 13.1% | — |
| 2019 | 9.6% | -3.5 pp (-26.7%) |
| 2020 | — | — |
| 2021 | 6.0% | — |
| 2022 | 6.8% | +0.8 pp (13.3%) |
| 2023 | 7.8% | +1.0 pp (14.7%) |