Union County's estimated 2026 population is 11,734 with a growth rate of -0.8% in the past year according to the most recent United States census data. Union County is the 63rd largest county in Iowa. The 2010 population was 12,513 and has seen a growth of -6.23% since that time.
Data after 2023 is projected based on recent change
Overall: 40.5 years
Female: 41.8 years
Male: 39.4 years
There are 9,296 adults, (2,490 of whom are seniors) in Union County.
Female: 6,015 (50.2%)
Male: 5,978 (49.8%)
The racial composition of Union County includes 92.81% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 11,131 | 92.81% |
| Two or more races | 371 | 3.09% |
| Black or African American | 196 | 1.63% |
| Other race | 173 | 1.44% |
| Asian | 106 | 0.88% |
| Native American | 16 | 0.13% |
Union County's average per capita income is $41,677. Household income levels show a median of $57,772. The poverty rate stands at 12.37%.
Name | Median | Mean |
|---|---|---|
| Married Families | $83,255 | - |
| Families | $77,098 | $89,041 |
| Households | $57,772 | $71,876 |
| Non Families | $38,574 | $46,899 |
Average Income
Median Household Income
Poverty Rate
