Consists of the following towns:

Agawam, Auburn, Bellingham, Blackstone, Brimfield, Brookfield, Charlton, Chicopee, Douglas, Dudley, East Brookfield, East Longmeadow, Hadley, Hampden, Holland, Hopedale, Leicester, Longmeadow, Ludlow, Mendon, Milford, Millbury, Millville, Monson, Northampton, Northbridge, Oxford, Palmer, South Hadley, Southbridge, Spencer, Springfield, Sturbridge, Sutton, Uxbridge, Wales, Ware, Warren, Webster, Wilbraham.