| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Albee, Grant | 57259 |
| Postal/ZIP Codes in Big Stone City, Grant | 57216 |
| Postal/ZIP Codes in Labolt, Grant | 57246 |
| Postal/ZIP Codes in Marvin, Grant | 57251 |
| Postal/ZIP Codes in Milbank, Grant | 57252 |
| Postal/ZIP Codes in Revillo, Grant | 57259 |
| Postal/ZIP Codes in Stockholm, Grant | 57264 |
| Postal/ZIP Codes in Strandburg, Grant | 57265 |
| Postal/ZIP Codes in Troy, Grant | 57265 |
| Postal/ZIP Codes in Twin Brooks, Grant | 57269 |