Hamilton County Flag

Hamilton County

State:
Ohio
County Seat:
Cincinnati

Hamilton County's estimated 2025 population is 831,732 with a growth rate of 0.28% in the past year according to the most recent United States census data. Hamilton County is the 3rd largest county in Ohio. The 2010 population was 802,295 and has seen a growth of 3.67% since that time.

831,732
Total Population
2,054
Population Density (mi²)
3
Population Rank (State)
2.3K 0.28%
Annual Population Growth

Hamilton County Population

Hamilton County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Hamilton County includes 64.34% White, 25.1% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White532,63064.34%
Black or African American207,80625.1%
Two or more races50,2856.07%
Asian22,5772.73%
Other race13,1661.59%
Native American8410.1%
Native Hawaiian or Pacific Islander5730.07%

Hamilton County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Hamilton County's average per capita income is $51,026. Household income levels show a median of $70,816. The poverty rate stands at 14.86%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$123,982$164,618
Families$97,939$132,999
Households$70,816$103,444
Non Families$43,581$62,872

$51,026

Average Income

$70,816

Median Household Income

14.86%

Poverty Rate