Union County's estimated 2025 population is 75,159 with a growth rate of 3.81% in the past year according to the most recent United States census data. Union County is the 33rd largest county in Ohio. The 2010 population was 52,462 and has seen a growth of 43.26% since that time.
Data after 2023 is projected based on recent change
The racial composition of Union County includes 86.57% White, 4.83% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 56,522 | 86.57% |
| Two or more races | 3,254 | 4.98% |
| Asian | 3,152 | 4.83% |
| Black or African American | 1,568 | 2.4% |
| Other race | 711 | 1.09% |
| Native American | 86 | 0.13% |
Married
Widowed
Divorced
Separated
Never Married
Union County's average per capita income is $62,307. Household income levels show a median of $109,506. The poverty rate stands at 5.06%.
Name | Median | Mean |
|---|---|---|
| Married Families | $136,098 | $169,897 |
| Families | $123,968 | $153,242 |
| Households | $109,506 | $134,832 |
| Non Families | $57,714 | $73,952 |
Average Income
Median Household Income
Poverty Rate