ZIP Code 57049

ZIP code 57049 is classified by USPS as a standard delivery area and covers roughly 36.7 square miles in North Sioux City, Union County, South Dakota. The area is home to 5,789 residents, producing a population density of 158 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 57049 against South Dakota and the nation.

On the economic side, the median household income for ZIP 57049 sits at $93,134 (22% above the South Dakota average), while per-capita income is $63,875. The poverty rate stands at 6.2% and the unemployment rate at 3.7%. On housing, the median home value is $432,100 (125% above the state average) with median rent at $1,147 per month, and 62.7% of occupied units are owner-occupied — a direct signal of whether 57049 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 44.1% of adults hold a bachelor's degree or higher, the median age is 39.8, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 3 additional ZIPs sharing Union County, so you can benchmark 57049 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data — no estimates, no proprietary scoring. Verify with HUD →