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County · Ohio

Warren County

256,059Population
5.7 %Change since 2020
2,981Net migration
4.1 %Unemployment rate

Facts

Population
256,059 (2024)
Change since 2020
5.7 %
Net migration
2,981 (2023)
Unemployment rate
4.1 % (2025)
State
Ohio
Population base, April 2020
242,348 (2020)
Births
2,472 (2023)
Births per 1,000 residents, 2023
9.7
Deaths
2,109 (2023)
Deaths per 1,000 residents, 2023
8.2
Natural change, 2023
363
International migration
1,766 (2023)
Domestic migration
1,215 (2023)
Net migration per 1,000, 2023
11.6
Postal code
OH
FIPS code
39165

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

Unemployment rate, annual average

199020254.14.6
PeriodValue
20254.1 %
20243.9 %
20233.1 %
20223.2 %
20214.1 %
20206.2 %
20193.5 %
20183.8 %
20174.0 %
20164.1 %
20154.2 %
20145.0 %

Population estimates, 2020–2024

20202024256.1K243.2K
PeriodValue
2024256,059
2023253,579
2022250,298
2021246,868
2020243,236