27 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 14760 | Olean | 17,272 |
| 14779 | Salamanca | 6,791 |
| 14706 | Allegany | 6,118 |
| 14070 | Gowanda | 5,437 |
| 14772 | Randolph | 4,431 |
| 14042 | Delevan | 4,207 |
| 14737 | Franklinville | 4,071 |
| 14719 | Cattaraugus | 3,334 |
| 14755 | Little Valley | 2,834 |
| 14726 | Conewango Valley | 2,681 |
| 14743 | Hinsdale | 2,095 |
| 14138 | South Dayton | 2,019 |
| 14101 | Machias | 1,984 |
| 14741 | Great Valley | 1,957 |
| 14065 | Freedom | 1,769 |
| 14171 | West Valley | 1,736 |
| 14778 | Saint Bonaventure | 1,428 |
| 14129 | Perrysburg | 1,228 |
| 14731 | Ellicottville | 1,198 |
| 14753 | Limestone | 929 |
| 14729 | East Otto | 768 |
| 14748 | Kill Buck | 481 |
| 14041 | Dayton | 204 |
| 14173 | Yorkshire | 183 |
| 14788 | Westons Mills | 95 |
| 14168 | Versailles | 90 |
| 14783 | Steamburg | 83 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 27 ZCTAs in Cattaraugus County, New York (US Census).