| Localité | Code postal |
|---|---|
| Brooktondale, Tompkins | 14817 |
| Dryden, Tompkins | 13053 |
| Etna, Tompkins | 13062 |
| Freeville, Tompkins | 13068 |
| Groton, Tompkins | 13073 |
| Groton City, Tompkins | 13073 |
| Ithaca, Tompkins | 14850, 14853 |
| Jacksonville, Tompkins | 14854 |
| Lansing, Tompkins | 14882 |
| McLean, Tompkins | 13102 |
| Newfield, Tompkins | 14867 |
| Slaterville Springs, Tompkins | 14881 |
| Trumansburg, Tompkins | 14886 |
| West Groton, Tompkins | 13073 |