35 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 13820 | Oneonta | 22,954 |
| 13326 | Cooperstown | 4,536 |
| 13849 | Unadilla | 4,351 |
| 13439 | Richfield Springs | 3,667 |
| 13491 | West Winfield | 3,570 |
| 13411 | New Berlin | 2,920 |
| 13825 | Otego | 2,785 |
| 12197 | Worcester | 2,275 |
| 13320 | Cherry Valley | 2,027 |
| 13843 | South New Berlin | 2,014 |
| 12155 | Schenevus | 1,812 |
| 13809 | Mount Upton | 1,688 |
| 12116 | Maryland | 1,533 |
| 13348 | Hartwick | 1,529 |
| 13808 | Morris | 1,486 |
| 13335 | Edmeston | 1,388 |
| 13807 | Milford | 1,260 |
| 13315 | Burlington Flats | 1,239 |
| 13810 | Mount Vision | 1,195 |
| 13796 | Laurens | 915 |
| 13337 | Fly Creek | 690 |
| 13861 | West Oneonta | 450 |
| 13776 | Gilbertsville | 395 |
| 12064 | East Worcester | 314 |
| 13468 | Springfield Center | 305 |
| 13342 | Garrattsville | 263 |
| 13450 | Roseboom | 251 |
| 13488 | Westford | 130 |
| 13859 | Wells Bridge | 119 |
| 13834 | Portlandville | 108 |
| 13415 | New Lisbon | 92 |
| 13482 | West Burlington | 73 |
| 13333 | East Springfield | 40 |
| 13457 | Schuyler Lake | 38 |
| 13747 | Colliersville | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 35 ZCTAs in Otsego County, New York (US Census).