North Sioux City, South Dakota

North Sioux City
North Sioux City city hall
Location in Union County and the state of South Dakota
Coordinates: 42°32′06″N 96°29′59″W / 42.53500°N 96.49972°W / 42.53500; -96.49972
CountryUnited States
StateSouth Dakota
CountyUnion
Incorporated1951
Government
 • MayorPatricia Teel
Area
 • City
2.71 sq mi (7.02 km2)
 • Land2.68 sq mi (6.94 km2)
 • Water0.027 sq mi (0.07 km2)
Elevation
1,109 ft (338 m)
Population
 (2020)
 • City
3,042
 • Estimate 
(2023)
3,048
 • Density1,134.6/sq mi (438.08/km2)
 • Urban
113,066 (US: 298th)
 • Metro
143,776 (US: 297th)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
57049
Area code605
FIPS code46-45700
GNIS feature ID1267510
Websitenorthsiouxcity-sd.gov

North Sioux City is a city in Union County, South Dakota, United States. The population was 3,042 at the 2020 census. It is part of the Sioux City metropolitan area.