33 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 01201 | Pittsfield | 44,848 |
| 01247 | North Adams | 14,794 |
| 01267 | Williamstown | 9,633 |
| 01230 | Great Barrington | 8,826 |
| 01220 | Adams | 8,074 |
| 01226 | Dalton | 6,256 |
| 01238 | Lee | 5,944 |
| 01240 | Lenox | 5,111 |
| 01225 | Cheshire | 3,216 |
| 01223 | Becket | 2,495 |
| 01235 | Hinsdale | 2,489 |
| 01257 | Sheffield | 2,348 |
| 01237 | Lanesborough | 2,302 |
| 01262 | Stockbridge | 1,778 |
| 01236 | Housatonic | 1,458 |
| 01270 | Windsor | 1,036 |
| 01254 | Richmond | 1,036 |
| 01266 | West Stockbridge | 1,000 |
| 01255 | Sandisfield | 994 |
| 01253 | Otis | 936 |
| 01256 | Savoy | 795 |
| 01245 | Monterey | 692 |
| 01259 | Southfield | 688 |
| 01222 | Ashley Falls | 664 |
| 01029 | East Otis | 539 |
| 01244 | Mill River | 271 |
| 01229 | Glendale | 263 |
| 01224 | Berkshire | 228 |
| 01258 | South Egremont | 193 |
| 01264 | Tyringham | 188 |
| 01343 | Drury | 147 |
| 01242 | Lenox Dale | 29 |
| 01260 | South Lee | 20 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 33 ZCTAs in Berkshire County, Massachusetts (US Census).