Total Population in Union County, IA
ACS 2024 5-Year Estimates
11,993
Rank #2,352/3,222 · #63 in IA
27th
Union 11,993
IA 3,210,507 -99.6%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Union County's total population of 11,993 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Union County for total population.
Nearby Rankings
Full ranking →| #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 |
About Total Population
Union County, Iowa has a total population of 11,993, ranking #2,352 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Iowa, it ranks #63 of 99. This places it in the 27th percentile nationally.
Total population count from the American Community Survey. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.