Area Code 978 is located in MA.
Cities located in 978 area code are Boston, Acton, Concord, Wilmington, Lawrence, Lowell, Sudbury, Peabody, Worcester, Topsfield, Billerica, Bolton, Marlborough, Salem, Cambridge, Danvers, Newburyport, Tyngsboro, Leominster, Boston, Gloucester, Beverly, Hamilton, Georgetown, Ipswich, Hudson, Haverhill, Maynard, Andover, Athol, Ashburnham, Barre, Framingham, Groton, N Reading, Templeton, Petersham, Sterling, Village Of Nagog Woods, Winchendon, Townsend, Westford, West Newbury, Rockport, Orange, Gardner, Littleton, Fitchburg, Merrimac, Clinton, Amesbury, Harvard, Ashby, Berlin, Ayer, Shirley, Princeton, Rowley, Pepperell, Waltham, Ayer, Manchester, Salem, Westminster, Lunenburg, Woburn, Essex, Hubbardston, Chelmsford, North Billerica, Billerica, Acton, Ipswich.
Counties located in this area code are Middlesex County, Essex County, Worcester County, Suffolk County, Franklin County