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County · Maine

Cumberland County

313,809Population
3.5 %Change since 2020
2,183Net migration
2.7 %Unemployment rate

Facts

Population
313,809 (2024)
Change since 2020
3.5 %
Net migration
2,183 (2023)
Unemployment rate
2.7 % (2025)
State
Maine
Population base, April 2020
303,080 (2020)
Births
2,904 (2023)
Births per 1,000 residents, 2023
9.3
Deaths
3,064 (2023)
Deaths per 1,000 residents, 2023
9.8
Natural change, 2023
-160
International migration
1,966 (2023)
Domestic migration
217 (2023)
Net migration per 1,000, 2023
7.0
Postal code
ME
FIPS code
23005

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020252.73.8
PeriodValue
20252.7 %
20242.4 %
20232.1 %
20222.3 %
20213.9 %
20204.8 %
20192.2 %
20182.5 %
20172.6 %
20162.9 %
20153.5 %
20144.4 %

Population estimates, 2020–2024

20202024313.8K303.6K
PeriodValue
2024313,809
2023311,258
2022309,309
2021306,152
2020303,606