Sioux City city, Iowa Demographics & Population 2026

Population Overview

Sioux City city is a mid-sized community located in Iowa, within Woodbury County. The total population is 85,651. It ranks as the 4th most populous out of 1,018 cities and towns in Iowa.

Age Demographics

The median age in Sioux City city is 35.4 years. This is 8% lower than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Sioux City city is $65,473. This is 10% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 17% lower. The poverty rate stands at 14.6%. This is 33% higher than the state poverty rate of 11.0%. The unemployment rate is 4.5%. This is 24% higher than the state rate of 3.6%. The median home value is $162,600. Housing costs are 17% lower than the state median of $195,900. With a home-value-to-income ratio of just 2.5x, Sioux City city is one of the most affordable housing markets in the area. 65.5% of occupied housing units are owner-occupied. This homeownership rate is 8% lower than the state average of 71.5%.

Race & Ethnicity

The largest racial or ethnic group in Sioux City city is White (non-Hispanic), making up 63.3% of the population. Hispanic or Latino residents account for 21.9%. The Hispanic or Latino population is significantly higher than the state average (21.9% vs 7.0%).

Education

21.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.9%.

Data Sources & Methodology

All demographic data for Sioux City city, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,018 Census-designated places in Iowa. For official data, visit data.census.gov.