| 57259 Albee | 605 | Grant County | South Dakota (SD) |
| 57216 Big Stone | 605 | Grant County | South Dakota (SD) |
| 57216 Big Stone City | 605 | Grant County | South Dakota (SD) |
| 57246 Labolt | 605 | Grant County | South Dakota (SD) |
| 57251 Marvin | 605 | Grant County | South Dakota (SD) |
| 57252 Milbank | 605 | Grant County | South Dakota (SD) |
| 57253 Milbank | 605 | Grant County | South Dakota (SD) |
| 57259 Revillo | 605 | Grant County | South Dakota (SD) |
| 57253 State Auto Insurance | 605 | Grant County | South Dakota (SD) |
| 57264 Stockholm | 605 | Grant County | South Dakota (SD) |
| 57265 Strandburg | 605 | Grant County | South Dakota (SD) |
| 57265 Troy | 605 | Grant County | South Dakota (SD) |
| 57269 Twin Brooks | 605 | Grant County | South Dakota (SD) |