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County · New Jersey
Middlesex County
890,119Population
3.1 %Change since 2020
7,422Net migration
5.2 %Unemployment rate
Facts
- Population
- 890,119 (2024)
- Change since 2020
- 3.1 %
- Net migration
- 7,422 (2023)
- Unemployment rate
- 5.2 % (2025)
- State
- New Jersey
- Population base, April 2020
- 863,201 (2020)
- Births
- 8,526 (2023)
- Births per 1,000 residents, 2023
- 9.6
- Deaths
- 6,144 (2023)
- Deaths per 1,000 residents, 2023
- 6.9
- Natural change, 2023
- 2,382
- International migration
- 14,735 (2023)
- Domestic migration
- -7,313 (2023)
- Net migration per 1,000, 2023
- 8.3
- Postal code
- NJ
- FIPS code
- 34023
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 5.2 % |
| 2024 | 4.6 % |
| 2023 | 4.2 % |
| 2022 | 3.7 % |
| 2021 | 6.4 % |
| 2020 | 8.8 % |
| 2019 | 3.2 % |
| 2018 | 3.7 % |
| 2017 | 4.2 % |
| 2016 | 4.6 % |
| 2015 | 5.1 % |
| 2014 | 6.0 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 890,119 |
| 2023 | 876,119 |
| 2022 | 866,241 |
| 2021 | 862,513 |
| 2020 | 861,460 |