ZIP code · Fort Thompson · South Dakota · United States
ZIP code 57339 — Fort Thompson
ZIP code 57339 serves Fort Thompson, South Dakota.
- Postal code
- 57339Single source Value from one source, not cross-checked.
- City
- Fort Thompson
- County
- Buffalo
- State
- South Dakota
- Country
- United States
- Coordinates
- 44.0517, -99.3973 — precision precise (locality)
View on OpenStreetMap - Population
- 1,310 (ZCTA, ACS 5-year)
- Median household income
- $42,417
- Median age
- 26.7
Nearby localities
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · census-acs5. Data generated on 2026-08-21. Methodology · Report an error on this page