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County · Pennsylvania
Mercer County
108,140Population
-2.3 %Change since 2020
38Net migration
4.8 %Unemployment rate
Facts
- Population
- 108,140 (2024)
- Change since 2020
- -2.3 %
- Net migration
- 38 (2023)
- Unemployment rate
- 4.8 % (2025)
- State
- Pennsylvania
- Population base, April 2020
- 110,656 (2020)
- Births
- 947 (2023)
- Births per 1,000 residents, 2023
- 8.8
- Deaths
- 1,552 (2023)
- Deaths per 1,000 residents, 2023
- 14.4
- Natural change, 2023
- -605
- International migration
- 30 (2023)
- Domestic migration
- 8 (2023)
- Net migration per 1,000, 2023
- 0.4
- Postal code
- PA
- FIPS code
- 42085
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 4.8 % |
| 2024 | 4.2 % |
| 2023 | 4.1 % |
| 2022 | 4.9 % |
| 2021 | 6.7 % |
| 2020 | 9.5 % |
| 2019 | 4.8 % |
| 2018 | 4.9 % |
| 2017 | 5.6 % |
| 2016 | 6.0 % |
| 2015 | 5.6 % |
| 2014 | 6.0 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 108,140 |
| 2023 | 108,519 |
| 2022 | 109,115 |
| 2021 | 109,964 |
| 2020 | 110,548 |