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County · Ohio

Miami County

111,950Population
2.9 %Change since 2020
837Net migration
4.4 %Unemployment rate

Facts

Population
111,950 (2024)
Change since 2020
2.9 %
Net migration
837 (2023)
Unemployment rate
4.4 % (2025)
State
Ohio
Population base, April 2020
108,774 (2020)
Births
1,119 (2023)
Births per 1,000 residents, 2023
10.0
Deaths
1,282 (2023)
Deaths per 1,000 residents, 2023
11.5
Natural change, 2023
-163
International migration
201 (2023)
Domestic migration
636 (2023)
Net migration per 1,000, 2023
7.5
Postal code
OH
FIPS code
39109

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

Unemployment rate, annual average

199020254.46.0
PeriodValue
20254.4 %
20244.0 %
20233.4 %
20223.6 %
20214.5 %
20207.0 %
20193.8 %
20183.9 %
20174.3 %
20164.4 %
20154.5 %
20145.4 %

Population estimates, 2020–2024

20202024112K109K
PeriodValue
2024111,950
2023110,898
2022110,245
2021109,426
2020108,962