| Official Zip Code Name | Westfield |
| Zip Code State | Massachusetts |
| Primary County: | Hampden |
| Area Code | 413 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 316 ft. |
| Area | 59.726 Sqm. |
| Coordinates(Y,X) | 42.162725, -72.771374 |