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County · New Jersey
Somerset County
357,467Population
3.5 %Change since 2020
3,131Net migration
4.5 %Unemployment rate
Facts
- Population
- 357,467 (2024)
- Change since 2020
- 3.5 %
- Net migration
- 3,131 (2023)
- Unemployment rate
- 4.5 % (2025)
- State
- New Jersey
- Population base, April 2020
- 345,362 (2020)
- Births
- 3,232 (2023)
- Births per 1,000 residents, 2023
- 9.0
- Deaths
- 2,544 (2023)
- Deaths per 1,000 residents, 2023
- 7.1
- Natural change, 2023
- 688
- International migration
- 3,841 (2023)
- Domestic migration
- -710 (2023)
- Net migration per 1,000, 2023
- 8.8
- Postal code
- NJ
- FIPS code
- 34035
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 4.5 % |
| 2024 | 3.9 % |
| 2023 | 3.5 % |
| 2022 | 3.1 % |
| 2021 | 5.2 % |
| 2020 | 7.2 % |
| 2019 | 2.8 % |
| 2018 | 3.2 % |
| 2017 | 3.6 % |
| 2016 | 3.9 % |
| 2015 | 4.5 % |
| 2014 | 5.2 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 357,467 |
| 2023 | 352,095 |
| 2022 | 348,319 |
| 2021 | 346,562 |
| 2020 | 344,788 |