North Sioux City Zip Codes - Union County SD

North Sioux City, SD Zip Code Map

North Sioux City, SD is a city located in Union County, South Dakota and has a land area of 14.17 square miles (36.70 km2). The water area for the city is 1.47 square miles or 3.81 km2. There is one unique zip code in North Sioux City, South Dakota and it is 57049. The area code(s) for North Sioux City is 605.

Zip Codes for North Sioux City, SD (1)

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57049 North Sioux City Union

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