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County · Maine

Kennebec County

128,461Population
3.2 %Change since 2020
1,297Net migration
3.1 %Unemployment rate

Facts

Population
128,461 (2024)
Change since 2020
3.2 %
Net migration
1,297 (2023)
Unemployment rate
3.1 % (2025)
State
Maine
Population base, April 2020
124,513 (2020)
Births
1,084 (2023)
Births per 1,000 residents, 2023
8.4
Deaths
1,585 (2023)
Deaths per 1,000 residents, 2023
12.3
Natural change, 2023
-501
International migration
299 (2023)
Domestic migration
998 (2023)
Net migration per 1,000, 2023
10.1
Postal code
ME
FIPS code
23011

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

Unemployment rate, annual average

199020253.14.5
PeriodValue
20253.1 %
20242.9 %
20232.4 %
20222.7 %
20214.4 %
20204.6 %
20192.8 %
20183.1 %
20173.4 %
20163.7 %
20154.3 %
20145.3 %

Population estimates, 2020–2024

20202024128.5K124.7K
PeriodValue
2024128,461
2023127,936
2022127,143
2021125,775
2020124,723