| Localité | Code postal |
|---|---|
| Allegany, Cattaraugus | 14706 |
| Cattaraugus, Cattaraugus | 14719 |
| Conewango Valley, Cattaraugus | 14726 |
| Dayton, Cattaraugus | 14041 |
| Delevan, Cattaraugus | 14042 |
| East Otto, Cattaraugus | 14729 |
| East Randolph, Cattaraugus | 14730 |
| Ellicottville, Cattaraugus | 14731 |
| Farmersville, Cattaraugus | 14060 |
| Farmersville Station, Cattaraugus | 14060 |
| Franklinville, Cattaraugus | 14737 |
| Freedom, Cattaraugus | 14065 |
| Gowanda, Cattaraugus | 14070 |
| Great Valley, Cattaraugus | 14741 |
| Hinsdale, Cattaraugus | 14743 |
| Humphrey, Cattaraugus | 14741 |
| Ischua, Cattaraugus | 14743 |
| Kill Buck, Cattaraugus | 14748 |
| Knapp Creek, Cattaraugus | 14760 |
| Leon, Cattaraugus | 14751 |
| Limestone, Cattaraugus | 14753 |
| Little Valley, Cattaraugus | 14755 |
| Machias, Cattaraugus | 14101 |
| Olean, Cattaraugus | 14760 |
| Otto, Cattaraugus | 14766 |
| Perrysburg, Cattaraugus | 14129 |