ZIP CodesZIP codes in Grant County, South Dakota
Grant County, South Dakota has 8 ZIP codes in this list, from 57216 to 57269. They cover 8 places, among them Big Stone City, Labolt, Marvin and Milbank.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 57216 | Big Stone City | 61.4 | 45.285, -96.561 |
| 57246 | Labolt | 30.4 | 45.041, -96.689 |
| 57251 | Marvin | 47.8 | 45.273, -96.910 |
| 57252 | Milbank | 165 | 45.206, -96.626 |
| 57259 | Revillo | 132 | 45.081, -96.556 |
| 57264 | Stockholm | 44.2 | 45.103, -96.811 |
| 57265 | Strandburg | 82.6 | 45.039, -96.790 |
| 57269 | Twin Brooks | 94.1 | 45.231, -96.824 |
The ZIP code areas of Grant County add up to about 658 square miles of land (1,703 sq km) as the Census Bureau draws them. The largest is 57252 (Milbank), with 165 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Big Stone City, SD 57216.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.