| Zip Code | City | Population ↓ |
|---|---|---|
| 10541 | Mahopac | 26,116 |
| 10512 | Carmel | 24,256 |
| 10509 | Brewster | 19,832 |
| 10579 | Putnam Valley | 8,171 |
| 12563 | Patterson | 7,691 |
| 10516 | Cold Spring | 5,585 |
| 10524 | Garrison | 4,344 |
| 10537 | Lake Peekskill | 2,961 |
| 10542 | Mahopac Falls | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Putnam County, New York (US Census).