35 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 13820 | Oneonta | 23,056 |
| 13326 | Cooperstown | 4,586 |
| 13849 | Unadilla | 4,427 |
| 13439 | Richfield Springs | 3,681 |
| 13491 | West Winfield | 3,431 |
| 13411 | New Berlin | 2,999 |
| 13825 | Otego | 2,903 |
| 12197 | Worcester | 2,298 |
| 13843 | South New Berlin | 2,038 |
| 13320 | Cherry Valley | 1,971 |
| 12116 | Maryland | 1,787 |
| 12155 | Schenevus | 1,685 |
| 13808 | Morris | 1,581 |
| 13335 | Edmeston | 1,511 |
| 13809 | Mount Upton | 1,410 |
| 13348 | Hartwick | 1,409 |
| 13315 | Burlington Flats | 1,237 |
| 13807 | Milford | 1,218 |
| 13796 | Laurens | 1,210 |
| 13810 | Mount Vision | 1,090 |
| 13337 | Fly Creek | 607 |
| 13861 | West Oneonta | 462 |
| 13776 | Gilbertsville | 380 |
| 12064 | East Worcester | 342 |
| 13468 | Springfield Center | 256 |
| 13342 | Garrattsville | 255 |
| 13450 | Roseboom | 143 |
| 13482 | West Burlington | 108 |
| 13488 | Westford | 103 |
| 13834 | Portlandville | 92 |
| 13415 | New Lisbon | 73 |
| 13859 | Wells Bridge | 56 |
| 13333 | East Springfield | 46 |
| 13457 | Schuyler Lake | 26 |
| 13747 | Colliersville | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 35 ZCTAs in Otsego County, New York (US Census).