Waltham, MA Area Codes
Waltham is served by area codes 339, 617 and 781. It is in Massachusetts, Middlesex County. About 64,792 people live in its 4 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 339, 617, 781 |
| State / province | Massachusetts |
| County | Middlesex County |
| Population | 64,792 |
| ZIP codes | 4 |
| Time zone | Eastern |
| Coordinates | 42.3806, -71.2411 |
What area code is Waltham in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 339 | Massachusetts | 1,094,884 | — |
| 617 | Massachusetts | 1,491,071 | — |
| 781 | Massachusetts | 1,209,767 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
West Newton 339, 617, 781Auburndale 339, 617, 781Newtonville 617, 857Watertown 617, 857Belmont 617, 857Newton 617, 857Arlington 339, 781Lexington 339, 781
How to dial
Dial 339 + 7 digits for a number in Waltham, or +1 339 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.