Union County's estimated 2026 population is 21,764 with a growth rate of 1.46% in the past year according to the most recent United States census data. Union County is the 66th largest county in Tennessee. The 2010 population was 19,118 and has seen a growth of 13.84% since that time.
Data after 2023 is projected based on recent change
Overall: 42.7 years
Female: 42.9 years
Male: 42.1 years
There are 16,079 adults, (3,849 of whom are seniors) in Union County.
Female: 10,168 (49.8%)
Male: 10,263 (50.2%)
The racial composition of Union County includes 94.6% White, and smaller percentages for other race, Black or African American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 19,327 | 94.6% |
| Two or more races | 936 | 4.58% |
| Other race | 87 | 0.43% |
| Black or African American | 70 | 0.34% |
| Asian | 11 | 0.05% |
Union County's average per capita income is $43,906. Household income levels show a median of $62,727. The poverty rate stands at 13.8%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,483 | - |
| Families | $75,910 | $86,501 |
| Households | $62,727 | $75,767 |
| Non Families | $24,804 | $38,885 |
Average Income
Median Household Income
Poverty Rate