| Locality | Post Code |
|---|---|
| Baker, Benson | 58386 |
| Brinsmade, Benson | 58351 |
| Esmond, Benson | 58332 |
| Fillmore, Benson | 58332 |
| Flora, Benson | 58348 |
| Fort Totten, Benson | 58335 |
| Harlow, Benson | 58346 |
| Hesper, Benson | 58348 |
| Knox, Benson | 58343 |
| Leeds, Benson | 58346 |
| Maddock, Benson | 58348 |
| Minnewaukan, Benson | 58351 |
| Oberon, Benson | 58357 |
| Saint Michael, Benson | 58370 |
| Tokio, Benson | 58379 |
| Warwick, Benson | 58381 |
| Wood Lake, Benson | 58379 |
| York, Benson | 58386 |