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County · Massachusetts
Middlesex County
1,668,956Population
2.3 %Change since 2020
10,899Net migration
4.1 %Unemployment rate
Facts
- Population
- 1,668,956 (2024)
- Change since 2020
- 2.3 %
- Net migration
- 10,899 (2023)
- Unemployment rate
- 4.1 % (2025)
- State
- Massachusetts
- Population base, April 2020
- 1,631,915 (2020)
- Births
- 16,179 (2023)
- Births per 1,000 residents, 2023
- 9.7
- Deaths
- 11,991 (2023)
- Deaths per 1,000 residents, 2023
- 7.2
- Natural change, 2023
- 4,188
- International migration
- 23,987 (2023)
- Domestic migration
- -13,088 (2023)
- Net migration per 1,000, 2023
- 6.5
- Postal code
- MA
- FIPS code
- 25017
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 4.1 % |
| 2024 | 3.5 % |
| 2023 | 3.0 % |
| 2022 | 3.0 % |
| 2021 | 4.3 % |
| 2020 | 7.6 % |
| 2019 | 2.4 % |
| 2018 | 2.8 % |
| 2017 | 3.1 % |
| 2016 | 3.3 % |
| 2015 | 3.9 % |
| 2014 | 4.7 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 1,668,956 |
| 2023 | 1,644,932 |
| 2022 | 1,629,805 |
| 2021 | 1,620,553 |
| 2020 | 1,627,578 |