Cities and towns included in IBEW Local 103's jurisdiction:

Acton, Amesbury, Andover, Arlington, Bedford, Bellingham, Belmont, Beverly, Billerica, Boston, Boxborough, Boxford, Braintree, Brookline, Burlington, Cambridge, Canton, Carlisle, Chelmsford, Chelsea, Cohasset, Concord, Danvers, Dedham, Dover, Dracut, Dunstable, Essex, Everett, Foxborough, Framingham, Franklin, Georgetown, Gloucester, Groveland, Hamilton, Haverhill, Hingham, Holliston, Hull, Ipswich, Lawrence, Lexington, Lincoln, Littleton, Lowell, Lynn, Lynnfield, Malden, Manchester, Marblehead, Maynard, Medfield, Medford, Medway, Melrose, Merrimac, Methuen, Middleton, Millis, Milton, Nahant, Natick, Needham, Newbury, Newburyport, Newton, Norfolk, North Andover, North Reading, Norwood, Peabody, Quincy, Reading, Revere, Rowley, Rockport, Salem, Salisbury, Saugus, Sharon, Sherborn, Somerville, Stoneham, Sudbury, Swampscott, Tewksbury, Topsfield, Tyngsboro, Wakefield, Walpole, Waltham, Watertown, Wayland, Wellesley, Wenham, West Newbury, Westford, Weston, Westwood, Weymouth, Wilmington, Winchester, Winthrop, Woburn, Wrentham.