ZIP code · Twin Brooks · South Dakota · United States
ZIP code 57269 — Twin Brooks
ZIP code 57269 serves Twin Brooks, South Dakota.
- Postal code
- 57269Single source Value from one source, not cross-checked.
- City
- Twin Brooks
- County
- Grant
- State
- South Dakota
- Country
- United States
- Coordinates
- 45.2309, -96.8237 — precision precise (locality)
View on OpenStreetMap - Population
- 257 (ZCTA, ACS 5-year)
- Median household income
- $96,111
- Median age
- 32.9
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
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 · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page