Union County Flag

Union County

State:
Iowa
County Seat:
Creston

Union County's estimated 2025 population is 11,912 with a growth rate of 0.03% in the past year according to the most recent United States census data. Union County is the 64th largest county in Iowa. The 2010 population was 12,513 and has seen a growth of -4.8% since that time.

11,912
Total Population
28
Population Density (mi²)
64
Population Rank (State)
3 0.03%
Annual Population Growth

Union County Population

Union County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Union County includes 94.19% White, and smaller percentages for other race, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White11,33994.19%
Two or more races4343.61%
Other race2091.74%
Black or African American550.46%
Native American10.01%

Union County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Union County's average per capita income is $40,841. Household income levels show a median of $56,813. The poverty rate stands at 12.6%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$92,182-
Families$80,000$92,935
Households$56,813$73,974
Non Families$35,743$44,447

$40,841

Average Income

$56,813

Median Household Income

12.6%

Poverty Rate