The Sioux City Metropolitan Statistical Area, otherwise known as Siouxland, 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 2010 census, the MSA had a population of 168,825 (though a July 1, 2012 estimate placed the population at 168,921).
Places with more than 80,000 inhabitants 
Places with 9,000 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 
Woodbury County, Iowa 
- Little Sioux
- Sioux City
- West Fork
- Wolf Creek
Dixon County, Nebraska 
Union County, South Dakota 
- Big Sioux
- Big Springs
- Civil Bend
- Elk Point
- Sioux Valley
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. As of the 2000 Census, the CSA had a population of 156,503 (though a July 1, 2009 estimate placed the population at 157,850).
- Metropolitan Statistical Areas (MSAs)
- Micropolitan Statistical Areas (μSAs)
See also