01821
Billerica, Middlesex - United States
Postal code 01821 corresponds to Billerica, Middlesex, in Massachusetts (United States).
- Country
- United States (US)
- Department
- Massachusetts
- Municipality
- Middlesex
- Coordinates
- 42.5519, -71.2518Degrees, minutes, seconds: 42°33'07"N 71°15'06"W
- Time zone
- America/New_York (UTC-5)
- Dialing code
- +1
How to write the address
Billerica, Massachusetts 01821 United States
Nearby codes