Hamilton County's estimated 2026 population is 838,977 with a growth rate of 0.07% 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 4.57% since that time.
Data after 2023 is projected based on recent change
Overall: 36.9 years
Female: 38.2 years
Male: 35.6 years
There are 639,895 adults, (137,755 of whom are seniors) in Hamilton County.
Female: 427,155 (51.4%)
Male: 403,619 (48.6%)
The racial composition of Hamilton County includes 63.24% White, 24.09% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 525,380 | 63.24% |
| Black or African American | 200,129 | 24.09% |
| Two or more races | 64,928 | 7.82% |
| Asian | 22,631 | 2.72% |
| Other race | 15,458 | 1.86% |
| Native American | 1,676 | 0.2% |
| Native Hawaiian or Pacific Islander | 572 | 0.07% |
Hamilton County's average per capita income is $52,950. Household income levels show a median of $72,470. The poverty rate stands at 14.97%.
Name | Median | Mean |
|---|---|---|
| Married Families | $126,905 | $169,472 |
| Families | $99,806 | $136,800 |
| Households | $72,470 | $106,643 |
| Non Families | $44,996 | $65,395 |
Average Income
Median Household Income
Poverty Rate