ZIP Code 57657

ZIP code 57657 is classified by USPS as a standard delivery area and covers roughly 676.7 square miles in Trail City, Corson County, South Dakota. The area is home to 203 residents, producing a population density of 0 people per square mile, and falls within the Denver time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 57657 against South Dakota and the nation.

On the economic side, the median household income for ZIP 57657 sits at —, while per-capita income is $21,400. The poverty rate stands at 30.0% and the unemployment rate at 24.7%. On housing, the median home value is $57,100 (70% below the state average) with median rent at — per month, and 88.0% of occupied units are owner-occupied — a direct signal of whether 57657 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 14.4% of adults hold a bachelor's degree or higher, the median age is 38.9, and the average commute is —. We also surface 1 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Corson County, so you can benchmark 57657 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 →