ZIP Code 01821
Billerica, Massachusetts · Middlesex County
No498
Zip01821
TypeSTANDARD
Decommissioned0
Primary CityBillerica
Acceptable Cities—
Unacceptable Cities—
StateMA
LstateMassachusetts
CountyMiddlesex County
TimezoneAmerica/New_York
Area Codes339, 351, 781, 978
World RegionNA
CountryUS
Latitude42,55
Longitude-71,26