ZIP Code 57039

ZIP code 57039 is classified by USPS as a standard delivery area and covers roughly 228.3 square miles in Lennox, Lincoln County, South Dakota. The area is home to 3,265 residents, producing a population density of 14 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 57039 against South Dakota and the nation.

On the economic side, the median household income for ZIP 57039 sits at $83,787 (9% above the South Dakota average), while per-capita income is $42,197. The poverty rate stands at 7.4% and the unemployment rate at 1.2%. On housing, the median home value is $290,400 (51% above the state average) with median rent at $745 per month, and 81.4% of occupied units are owner-occupied — a direct signal of whether 57039 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 24.1% of adults hold a bachelor's degree or higher, the median age is 40.9, and the average commute is 22 minutes. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lincoln County, so you can benchmark 57039 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 →