| Locality | Post Code |
|---|---|
| Bellevue, Huron | 44811 |
| Boughtonville, Huron | 44890 |
| Bronson, Huron | 44857 |
| Celeryville, Huron | 44890 |
| Centerton, Huron | 44890 |
| Clarksfield, Huron | 44889 |
| Collins, Huron | 44826 |
| Delphi, Huron | 44890 |
| East Townsend, Huron | 44826 |
| Fitchville, Huron | 44851 |
| Greenwich, Huron | 44837 |
| Hartland, Huron | 44857 |
| Havana, Huron | 44890 |
| Kimball, Huron | 44847 |
| Monroeville, Huron | 44847 |
| New Haven, Huron | 44850 |
| New London, Huron | 44851 |
| New Pittsburgh, Huron | 44865 |
| North Fairfield, Huron | 44855 |
| North Monroeville, Huron | 44847 |
| Norwalk, Huron | 44857 |
| Olena, Huron | 44857 |
| Plymouth, Huron | 44865 |
| Ridgefield, Huron | 44847 |
| Ruggles, Huron | 44851 |
| Shenandoah, Huron | 44837 |