68 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 14221 | Buffalo | 55,153 |
| 14075 | Hamburg | 44,588 |
| 14215 | Buffalo | 42,813 |
| 14150 | Tonawanda | 41,585 |
| 14224 | Buffalo | 41,101 |
| 14086 | Lancaster | 35,659 |
| 14225 | Buffalo | 33,801 |
| 14127 | Orchard Park | 30,783 |
| 14226 | Buffalo | 29,482 |
| 14207 | Buffalo | 25,731 |
| 14043 | Depew | 24,799 |
| 14228 | Buffalo | 24,345 |
| 14211 | Buffalo | 23,951 |
| 14220 | Buffalo | 23,786 |
| 14216 | Buffalo | 23,221 |
| 14213 | Buffalo | 23,072 |
| 14217 | Buffalo | 22,566 |
| 14206 | Buffalo | 22,427 |
| 14223 | Buffalo | 22,363 |
| 14227 | Buffalo | 21,669 |
| 14072 | Grand Island | 21,441 |
| 14214 | Buffalo | 21,162 |
| 14218 | Buffalo | 20,661 |
| 14051 | East Amherst | 20,333 |
| 14052 | East Aurora | 17,501 |
| 14210 | Buffalo | 15,454 |
| 14222 | Buffalo | 15,440 |
| 14212 | Buffalo | 13,603 |
| 14208 | Buffalo | 12,731 |
| 14201 | Buffalo | 12,545 |
| 14004 | Alden | 11,312 |
| 14219 | Buffalo | 10,894 |
| 14032 | Clarence Center | 10,359 |
| 14031 | Clarence | 9,741 |
| 14059 | Elma | 9,413 |
| 14006 | Angola | 9,354 |
| 14001 | Akron | 9,122 |
| 14068 | Getzville | 8,504 |
| 14085 | Lake View | 8,439 |
| 14209 | Buffalo | 8,373 |
| 14204 | Buffalo | 7,748 |
| 14057 | Eden | 7,632 |
| 14141 | Springville | 7,624 |
| 14047 | Derby | 6,072 |
| 14261 | Buffalo | 4,970 |
| 14080 | Holland | 4,434 |
| 14202 | Buffalo | 3,764 |
| 14025 | Boston | 3,445 |
| 14111 | North Collins | 3,125 |
| 14081 | Irving | 2,736 |
| 14203 | Buffalo | 2,526 |
| 14170 | West Falls | 2,200 |
| 14034 | Collins | 2,175 |
| 14139 | South Wales | 2,093 |
| 14030 | Chaffee | 2,051 |
| 14102 | Marilla | 1,894 |
| 14033 | Colden | 1,412 |
| 14091 | Lawtons | 1,402 |
| 14055 | East Concord | 1,300 |
| 14260 | Buffalo | 857 |
| 14026 | Bowmansville | 561 |
| 14069 | Glenwood | 492 |
| 14027 | Brant | 143 |
| 14061 | Farnham | 101 |
| 14169 | Wales Center | 84 |
| 14035 | Collins Center | 69 |
| 14134 | Sardinia | 57 |
| 14112 | North Evans | 38 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 68 ZCTAs in Erie County, New York (US Census).