| Locality | Post Code |
|---|---|
| Alfred, Allegany | 14802 |
| Alfred Station, Allegany | 14803 |
| Allentown, Allegany | 14707 |
| Alma, Allegany | 14708 |
| Almond, Allegany | 14804 |
| Andover, Allegany | 14806 |
| Angelica, Allegany | 14709 |
| Belfast, Allegany | 14711 |
| Belmont, Allegany | 14813 |
| Black Creek, Allegany | 14714 |
| Bolivar, Allegany | 14715 |
| Canaseraga, Allegany | 14822 |
| Caneadea, Allegany | 14717 |
| Centerville, Allegany | 14029 |
| Ceres, Allegany | 14721 |
| Cuba, Allegany | 14727 |
| Fillmore, Allegany | 14735 |
| Friendship, Allegany | 14739 |
| Houghton, Allegany | 14744 |
| Hume, Allegany | 14745 |
| Little Genesee, Allegany | 14754 |
| Richburg, Allegany | 14774 |
| Rushford, Allegany | 14777 |
| Scio, Allegany | 14880 |
| South Bolivar, Allegany | 14715 |
| Swain, Allegany | 14884 |