Total Population in Union County, TN
ACS 2024 5-Year Estimates
How Union County Compares
National Distribution
Where Union County falls among all 3,222 U.S. counties for total population.
■ Union County: 20,431
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,854 | Lincoln County, WY | 20,486 |
| #1,855 | Assumption Parish, LA | 20,484 |
| #1,856 | Worth County, GA | 20,451 |
| #1,857 | Union County, TN | 20,431 |
| #1,858 | Smith County, TN | 20,389 |
| #1,859 | Fulton County, IN | 20,312 |
| #1,860 | Jones County, TX | 20,304 |
Total Population in Union County, Tennessee
Union County, Tennessee has a total population of 20,431, which ranks #1,857 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Tennessee, Union County ranks #66 of 95 out of 95 counties. This places it in the 42th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.