ZIP Code 57555

ZIP code 57555 is classified by USPS as a standard delivery area and covers roughly 1095.4 square miles in Mission, Todd County, South Dakota. The area is home to 3,834 residents, producing a population density of 4 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 57555 against South Dakota and the nation.

On the economic side, the median household income for ZIP 57555 sits at $40,694 (47% below the South Dakota average), while per-capita income is $19,075. The poverty rate stands at 38.4% and the unemployment rate at 16.2%. On housing, the median home value is $84,600 (56% below the state average) with median rent at $573 per month, and 49.0% of occupied units are owner-occupied — a direct signal of whether 57555 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 22.7% of adults hold a bachelor's degree or higher, the median age is 29.1, and the average commute is —. Use the benchmarks above to see where 57555 sits relative to South Dakota and the national baseline rather than viewing the numbers in isolation. 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 →