31 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 12534 | Hudson | 17,176 |
| 12184 | Valatie | 7,787 |
| 12037 | Chatham | 3,926 |
| 12526 | Germantown | 3,548 |
| 12075 | Ghent | 3,248 |
| 12529 | Hillsdale | 2,410 |
| 12173 | Stuyvesant | 2,099 |
| 12521 | Craryville | 2,056 |
| 12516 | Copake | 1,925 |
| 12523 | Elizaville | 1,908 |
| 12106 | Kinderhook | 1,864 |
| 12060 | East Chatham | 1,859 |
| 12565 | Philmont | 1,439 |
| 12125 | New Lebanon | 1,141 |
| 12029 | Canaan | 1,069 |
| 12136 | Old Chatham | 1,043 |
| 12502 | Ancram | 984 |
| 12503 | Ancramdale | 732 |
| 12017 | Austerlitz | 471 |
| 12174 | Stuyvesant Falls | 427 |
| 12530 | Hollowville | 270 |
| 12130 | Niverville | 233 |
| 12513 | Claverack | 228 |
| 12165 | Spencertown | 220 |
| 12517 | Copake Falls | 187 |
| 12172 | Stottville | 176 |
| 12195 | West Lebanon | 162 |
| 12544 | Mellenville | 127 |
| 12132 | North Chatham | 111 |
| 12024 | Brainard | 78 |
| 12115 | Malden Bridge | 60 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 31 ZCTAs in Columbia County, New York (US Census).