ZIP Code 02451
Waltham · Middlesex, Massachusetts
02451 is the ZIP code of Waltham in Middlesex, Massachusetts, United States.
- ZIP Code
- 02451
- County
- Middlesex
- State
- Massachusetts
- Country
- United States
Place with ZIP code 02451
| Place | County | Location |
|---|---|---|
| Waltham | Middlesex | 42.399, -71.245 |
Near Boston
The nearest major city is Boston, about 16 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 02451?
Waltham.
Which county and state is 02451 in?
Middlesex, Massachusetts, United States.
What is the nearest major city to 02451?
Boston, about 16 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.