Sioux City metropolitan area

Sioux City Metropolitan Area
Skyline of Sioux City
Map of Sioux City–Le Mars, IA–NE–SD CSA
Country United States
State Iowa
Nebraska
South Dakota
Principal citySioux City
Time zoneUTC−6 (CST)
  Summer (DST)UTC−5 (CDT)

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.