North Sioux City, SD ZIP code

The ZIP code for North Sioux City, South Dakota is 57049. It is in Union County.

57049

Population in these ZIPs: 7,962
Avg. median income: $93,100population-weighted
Typical home value: $422,200population-weighted
Metro area: Sioux City, IA-NE-SD

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North Sioux City, SD ZIP code list

North Sioux City, SD ZIP codes
ZIP code	Population	Median income	Typical home value
57049	7,962	$93,134	$422,200

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near North Sioux City

Jefferson 5 mi
Elk Point 16 mi
Burbank 25 mi
Vermillion 33 mi
Alcester 34 mi
Beresford 41 mi
Hudson 41 mi
Gayville 42 mi
Wakonda 43 mi
Fairview 46 mi
Centerville 47 mi
Volin 48 mi

Frequently asked questions

What is the ZIP code for North Sioux City, SD?

The ZIP code for North Sioux City, SD is 57049.

What county is North Sioux City, South Dakota in?

North Sioux City ZIP codes are in Union County.