Mountainside borough: Foreign-Born Population Trend
How Mountainside borough'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
15.0%
2023
18.5%
Total change
+3.5 pp
% change
+23.3%
| Year | Foreign-Born Population | Change |
|---|---|---|
| 2017 | 15.0% | — |
| 2019 | 14.0% | -1.0 pp (-6.7%) |
| 2020 | 16.2% | +2.2 pp (15.7%) |
| 2021 | 15.7% | -0.5 pp (-3.1%) |
| 2022 | 18.2% | +2.5 pp (15.9%) |
| 2023 | 18.5% | +0.3 pp (1.6%) |