26 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 1002 | Amherst | 24,726 |
| 1027 | Easthampton | 17,678 |
| 1075 | South Hadley | 17,410 |
| 1007 | Belchertown | 15,406 |
| 1060 | Northampton | 15,237 |
| 1003 | Amherst | 12,458 |
| 1082 | Ware | 10,418 |
| 1062 | Florence | 9,188 |
| 1073 | Southampton | 6,212 |
| 1033 | Granby | 6,088 |
| 1035 | Hadley | 5,299 |
| 1050 | Huntington | 2,573 |
| 1096 | Williamsburg | 2,566 |
| 1038 | Hatfield | 2,534 |
| 1063 | Northampton | 2,121 |
| 1053 | Leeds | 2,033 |
| 1039 | Haydenville | 1,660 |
| 1098 | Worthington | 1,019 |
| 1026 | Cummington | 1,005 |
| 1088 | West Hatfield | 654 |
| 1070 | Plainfield | 593 |
| 1032 | Goshen | 503 |
| 1012 | Chesterfield | 387 |
| 1243 | Middlefield | 196 |
| 1066 | North Hatfield | 115 |
| 1084 | West Chesterfield | 101 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 26 ZCTAs in Hampshire County, Massachusetts (US Census).