MA-03
- In Essex County: Precincts 2 through 7 and Precinct 9 in Andover, Haverhill, Lawrence, and Methuen.
- In Middlesex County: Acton, Ashby, Ayer, Boxborough, Carlisle, Chelmsford, Concord, Dracut, Dunstable, Groton, Hudson, Littleton, Lowell, Marlborough, Maynard, Pepperell, Shirley, Stow, Townsend, Tyngsborough, Westford, and Precinct 1 in Sudbury.
- In Worcester County: Ashburnham, Berlin, Bolton, Clinton, Fitchburg, Gardner, Harvard, Lancaster, Lunenburg, Westminster, and Precincts 1A, 2 and 3 in Winchendon.