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County · Indiana

Hamilton County

379,704Population
9.3 %Change since 2020
4,825Net migration
2.9 %Unemployment rate

Facts

Population
379,704 (2024)
Change since 2020
9.3 %
Net migration
4,825 (2023)
Unemployment rate
2.9 % (2025)
State
Indiana
Population base, April 2020
347,491 (2020)
Births
3,895 (2023)
Births per 1,000 residents, 2023
10.3
Deaths
2,347 (2023)
Deaths per 1,000 residents, 2023
6.2
Natural change, 2023
1,548
International migration
2,177 (2023)
Domestic migration
2,648 (2023)
Net migration per 1,000, 2023
12.7
Postal code
IN
FIPS code
18057

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

Unemployment rate, annual average

199020252.92.2
PeriodValue
20252.9 %
20243.2 %
20232.7 %
20222.2 %
20212.5 %
20204.8 %
20192.6 %
20182.7 %
20172.8 %
20163.2 %
20153.4 %
20144.1 %

Population estimates, 2020–2024

20202024379.7K349K
PeriodValue
2024379,704
2023372,588
2022366,264
2021357,691
2020349,031