8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 13148 | Seneca Falls | 10,749 |
| 13165 | Waterloo | 9,458 |
| 14541 | Romulus | 3,713 |
| 14521 | Ovid | 2,594 |
| 14847 | Interlaken | 2,300 |
| 14860 | Lodi | 1,197 |
| 14588 | Willard | 240 |
| 13065 | Fayette | 80 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Seneca County, New York (US Census).