Sioux City Flag

Sioux City

County:
Woodbury County
County Seat:
Yes
Area (mi²):
58.878
State:
Iowa

Sioux City is a city located in Woodbury County, Iowa. Sioux City has a 2025 population of 85,694. It is also the county seat of Woodbury County. Sioux City is currently declining at a rate of -0.02% annually and its population has decreased by -0.1% since the most recent census, which recorded a population of 85,776 in 2020.

The average household income in Sioux City is $83,900 with a poverty rate of 14.63%.The median age in Sioux City is 35.4 years: 34.3 years for males, and 36.6 years for females.

85.7K
Total Population
1,455
Density (mi²)
-16 -0.02%
Growth

Sioux City Population

Sioux City Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Sioux City includes 70.2% White, 5.51% Black or African American, 4.37% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White60,12470.2%
Two or more races12,58314.69%
Black or African American4,7165.51%
Other race3,7454.37%
Asian2,4042.81%
Native American1,6571.93%
Native Hawaiian or Pacific Islander4220.49%

Sioux City Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sioux City's average per capita income is $45,023. Household income levels show a median of $65,473. The poverty rate stands at 14.63%.

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$103,128$119,444
Families$82,847$99,963
Households$65,473$83,900
Non Families$37,518$49,800

$45,023

Average Income

$65,473

Median Household Income

14.63%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)