39 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 01085 | Westfield | 41,102 |
| 01040 | Holyoke | 37,813 |
| 01109 | Springfield | 31,124 |
| 01020 | Chicopee | 30,167 |
| 01089 | West Springfield | 28,772 |
| 01108 | Springfield | 27,405 |
| 01013 | Chicopee | 23,284 |
| 01104 | Springfield | 23,209 |
| 01056 | Ludlow | 20,904 |
| 01028 | East Longmeadow | 16,321 |
| 01001 | Agawam | 16,234 |
| 01106 | Longmeadow | 15,853 |
| 01118 | Springfield | 14,839 |
| 01095 | Wilbraham | 14,618 |
| 01119 | Springfield | 13,616 |
| 01030 | Feeding Hills | 12,305 |
| 01107 | Springfield | 12,009 |
| 01105 | Springfield | 11,843 |
| 01151 | Indian Orchard | 9,606 |
| 01077 | Southwick | 9,217 |
| 01069 | Palmer | 8,821 |
| 01057 | Monson | 8,176 |
| 01129 | Springfield | 5,672 |
| 01036 | Hampden | 4,946 |
| 01010 | Brimfield | 3,705 |
| 01128 | Springfield | 2,896 |
| 01521 | Holland | 2,583 |
| 01103 | Springfield | 2,477 |
| 01080 | Three Rivers | 2,454 |
| 01034 | Granville | 2,332 |
| 01022 | Chicopee | 1,844 |
| 01081 | Wales | 1,747 |
| 01008 | Blandford | 1,327 |
| 01011 | Chester | 1,175 |
| 01071 | Russell | 1,054 |
| 01009 | Bondsville | 804 |
| 01079 | Thorndike | 438 |
| 01097 | Woronoco | 143 |
| 01144 | Springfield | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 39 ZCTAs in Hampden County, Massachusetts (US Census).