Contra Costa County: Foreign-Born Population Trend
How Contra Costa 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
6.4%
2023
9.2%
Total change
+2.8 pp
% change
+43.7%
| Year | Foreign-Born Population | Change |
|---|---|---|
| 2017 | 6.4% | — |
| 2019 | 5.4% | -1.0 pp (-15.6%) |
| 2020 | — | — |
| 2021 | 6.2% | — |
| 2022 | 9.7% | +3.5 pp (56.5%) |
| 2023 | 9.2% | -0.5 pp (-5.2%) |