| Locality | Post Code |
|---|---|
| Aurora, Hamilton | 68818 |
| Giltner, Hamilton | 68841 |
| Hampton, Hamilton | 68843 |
| Henderson, Hamilton | 68371 |
| Hordville, Hamilton | 68846 |
| Kronborg, Hamilton | 68854 |
| Marquette, Hamilton | 68854 |
| Phillips, Hamilton | 68865 |
| Stockham, Hamilton | 68818 |
| Trumbull, Hamilton | 68980 |