Union County's estimated 2026 population is 74,909 with a growth rate of 1.99% in the past year according to the most recent United States census data. Union County is the 34th largest county in Ohio. The 2010 population was 52,462 and has seen a growth of 42.79% since that time.
Data after 2023 is projected based on recent change
Overall: 38.5 years
Female: 39.1 years
Male: 37.8 years
There are 51,076 adults, (8,889 of whom are seniors) in Union County.
Female: 34,647 (51.5%)
Male: 32,677 (48.5%)
The racial composition of Union County includes 85.15% White, 5.01% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 57,329 | 85.15% |
| Two or more races | 4,050 | 6.02% |
| Asian | 3,375 | 5.01% |
| Black or African American | 1,550 | 2.3% |
| Other race | 930 | 1.38% |
| Native American | 90 | 0.13% |
Union County's average per capita income is $63,025. Household income levels show a median of $112,322. The poverty rate stands at 4.99%.
Name | Median | Mean |
|---|---|---|
| Married Families | $142,729 | $173,029 |
| Families | $129,446 | $156,391 |
| Households | $112,322 | $137,663 |
| Non Families | $58,390 | $75,376 |
Average Income
Median Household Income
Poverty Rate