31 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 12534 | Hudson | 17,468 |
| 12184 | Valatie | 7,547 |
| 12037 | Chatham | 4,045 |
| 12526 | Germantown | 3,427 |
| 12075 | Ghent | 3,147 |
| 12529 | Hillsdale | 2,345 |
| 12523 | Elizaville | 2,132 |
| 12173 | Stuyvesant | 2,040 |
| 12106 | Kinderhook | 1,963 |
| 12521 | Craryville | 1,874 |
| 12060 | East Chatham | 1,768 |
| 12516 | Copake | 1,748 |
| 12565 | Philmont | 1,575 |
| 12125 | New Lebanon | 1,147 |
| 12502 | Ancram | 1,019 |
| 12029 | Canaan | 1,017 |
| 12136 | Old Chatham | 881 |
| 12503 | Ancramdale | 750 |
| 12174 | Stuyvesant Falls | 571 |
| 12017 | Austerlitz | 439 |
| 12130 | Niverville | 305 |
| 12517 | Copake Falls | 270 |
| 12530 | Hollowville | 218 |
| 12165 | Spencertown | 202 |
| 12513 | Claverack | 198 |
| 12172 | Stottville | 184 |
| 12195 | West Lebanon | 155 |
| 12132 | North Chatham | 129 |
| 12024 | Brainard | 80 |
| 12115 | Malden Bridge | 62 |
| 12544 | Mellenville | 54 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 31 ZCTAs in Columbia County, New York (US Census).