28 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 14895 | Wellsville | 9,117 |
| 14727 | Cuba | 5,039 |
| 14802 | Alfred | 4,627 |
| 14770 | Portville | 2,805 |
| 14735 | Fillmore | 2,609 |
| 14739 | Friendship | 2,494 |
| 14813 | Belmont | 2,465 |
| 14715 | Bolivar | 2,374 |
| 14744 | Houghton | 2,186 |
| 14806 | Andover | 2,131 |
| 14711 | Belfast | 1,861 |
| 14804 | Almond | 1,501 |
| 14803 | Alfred Station | 1,491 |
| 14880 | Scio | 1,475 |
| 14709 | Angelica | 1,190 |
| 14822 | Canaseraga | 826 |
| 14897 | Whitesville | 770 |
| 14754 | Little Genesee | 633 |
| 14717 | Caneadea | 612 |
| 14714 | Black Creek | 556 |
| 14777 | Rushford | 531 |
| 14884 | Swain | 363 |
| 14060 | Farmersville Station | 346 |
| 14774 | Richburg | 322 |
| 14721 | Ceres | 176 |
| 14708 | Alma | 139 |
| 14707 | Allentown | 113 |
| 14029 | Centerville | 31 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 28 ZCTAs in Allegany County, New York (US Census).