The Health Foundation's region consists generally of the 60 cities and towns comprising Worcester County and the contiguous communities of Ashby, Ashland, Ayer, Bellingham, Boxborough, Brimfield, Holland, Holliston, Hopkinton, Hudson, Littleton, Marlborough, Medway, New Salem, Orange, Palmer, Shirley, Stow, Townsend, Ware and Warwick.