About North Sioux City, South Dakota

North Sioux City is a city in Union County, South Dakota, United States. The population was 2,530 at the 2010 census. It is part of the Sioux City, IA?NE?SD Metropolitan Statistical Area.

News from North Sioux City

North Sioux City Facts

  • Population Total: 2530
  • Square Miles: 2.2
  • Area Code: 605
  • Elevation: 1099
  • Postal Codes: 57049
  • Timezone: North American Central