Total Population in Union County, IA
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: 11,993
Ranking Context
| Rank | County | Value |
|---|---|---|
| #2,349 | Northampton County, VA | 12,059 |
| #2,350 | Jackson County, TN | 12,029 |
| #2,351 | Lunenburg County, VA | 12,016 |
| #2,352 | Union County, IA | 11,993 |
| #2,353 | Douglas County, MO | 11,965 |
| #2,354 | Custer County, MT | 11,961 |
| #2,355 | Trousdale County, TN | 11,957 |
Total Population in Union County, Iowa
Union County, Iowa has a total population of 11,993, which ranks #2,352 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Iowa, Union County ranks #63 of 99 out of 99 counties. This places it in the 27th 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.