13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 14850 | Ithaca | 68,610 |
| 14886 | Trumansburg | 6,652 |
| 13073 | Groton | 6,054 |
| 14867 | Newfield | 5,149 |
| 13053 | Dryden | 4,794 |
| 13068 | Freeville | 4,592 |
| 14882 | Lansing | 4,191 |
| 14817 | Brooktondale | 2,479 |
| 14853 | Ithaca | 2,405 |
| 13062 | Etna | 195 |
| 14881 | Slaterville Springs | 117 |
| 14854 | Jacksonville | 76 |
| 13102 | McLean | 36 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Tompkins County, New York (US Census).