The Sioux City metropolitan statistical area, as defined by the United States Census Bureau, is an area consisting of four counties in three states – Iowa, Nebraska, and South Dakota, anchored by the city of Sioux City, Iowa. As of the 2020 census, the MSA had a population of 145,940. Plymouth County, Iowa, was removed from the definition of the MSA prior to the 2020 census.

Counties

Communities

Places with more than 80,000 inhabitants

Places with 10,000 to 15,000 inhabitants

Places with 1,000 to 5,000 inhabitants

Places with 500 to 1,000 inhabitants

Places with less than 500 inhabitants

Unincorporated places

Townships

Woodbury County, Iowa

Dixon County, Nebraska

Union County, South Dakota

Demographics

As of the census of 2000, there were 143,005 people, 53,586 households, and 36,735 families residing within the MSA. The racial makeup of the MSA was 87.40% White, 1.58% African American, 1.54% Native American, 2.31% Asian, 0.04% Pacific Islander, 5.19% from other races, and 1.93% from two or more races. Hispanic or Latino of any race were 10.17% of the population. The median income for a household in the MSA was $39,084, and the median income for a family was $45,638. Males had a median income of $30,799 versus $22,162 for females. The per capita income for the MSA was $18,650. The Sioux City Human Rights Commission is an impartial governmental agency that works to protect the rights of the diverse population who live and work in Sioux City.

Combined statistical area

The Sioux City–Vermillion combined statistical area (CSA) is made up of five counties in three states: Iowa, Nebraska, and South Dakota. The statistical area includes one metropolitan area and one micropolitan area. The CSA had a population population of 175,638 as of 2020.

Media

Sioux City, Iowa has been featured in an Independent Lens series documenting bullying. The Sioux City metropolitan area is also featured in the book 100 Things to Do in Sioux City & Siouxland Before You Die by Lindsay Hindman (Reedy Press, Sept. 2020)