33 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 01201 | Pittsfield | 45,072 |
| 01247 | North Adams | 14,967 |
| 01230 | Great Barrington | 8,813 |
| 01220 | Adams | 8,106 |
| 01267 | Williamstown | 7,985 |
| 01226 | Dalton | 6,304 |
| 01238 | Lee | 5,893 |
| 01240 | Lenox | 5,024 |
| 01225 | Cheshire | 3,234 |
| 01223 | Becket | 2,588 |
| 01235 | Hinsdale | 2,456 |
| 01257 | Sheffield | 2,331 |
| 01237 | Lanesborough | 2,269 |
| 01262 | Stockbridge | 1,652 |
| 01236 | Housatonic | 1,593 |
| 01270 | Windsor | 1,002 |
| 01254 | Richmond | 962 |
| 01266 | West Stockbridge | 919 |
| 01253 | Otis | 903 |
| 01255 | Sandisfield | 850 |
| 01245 | Monterey | 828 |
| 01259 | Southfield | 778 |
| 01256 | Savoy | 733 |
| 01029 | East Otis | 652 |
| 01222 | Ashley Falls | 611 |
| 01244 | Mill River | 243 |
| 01229 | Glendale | 213 |
| 01224 | Berkshire | 201 |
| 01258 | South Egremont | 191 |
| 01343 | Drury | 190 |
| 01264 | Tyringham | 184 |
| 01242 | Lenox Dale | 165 |
| 01260 | South Lee | 20 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 33 ZCTAs in Berkshire County, Massachusetts (US Census).