ZIP Code 01821 – Billerica, Massachusetts
The 01821 ZIP Code belongs to Billerica, Massachusetts. The population in this 01821 ZIP code is 30,203. The latitude is 42.54999 and longitude is -71.25206 in 01821 Billerica, Massachusetts. The time zone for this 01821 ZIP code is America/New_York.
| City | Billerica |
| Zip Code | 01821 |
| State | Massachusetts |
| County | Middlesex |
| Population | 30,203 |
| Latitude | 42.54999 |
| Longitude | -71.25206 |
| Time Zone | America/New_York |