| Locality | Post Code |
|---|---|
| Portville, Cattaraugus | 14770 |
| Randolph, Cattaraugus | 14772 |
| Saint Bonas, Cattaraugus | 14778 |
| Saint Bonaventure, Cattaraugus | 14778 |
| Salamanca, Cattaraugus | 14779 |
| Sandusky, Cattaraugus | 14065 |
| South Dayton, Cattaraugus | 14138 |
| Steamburg, Cattaraugus | 14783 |
| Versailles, Cattaraugus | 14168 |
| West Valley, Cattaraugus | 14171 |
| Westons Mills, Cattaraugus | 14788 |
| Yorkshire, Cattaraugus | 14173 |