Sunderland is a town in Franklin County, Massachusetts, United States, part of the Pioneer Valley. The population was 3,684 at the 2010 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area.
Sunderland was first settled in 1713 and was officially incorporated in 1718. It was first known as Swampfield, a name which is now honored by Swampfield Road, but the name was changed to attract more residents. It was renamed in honor of Charles Spencer, the Earl of Sunderland. Historically, the land was largely used for farming. Before the incorporation of Leverett in 1774, that town was a part of Sunderland's territory.
According to the 2007 Annual Report, upwards of forty programs and events were made available to the residents of Sunderland through the support of the Recreation Department. Events and programs include craft lessons, UMass ice hockey and football events, adult and youth sports, an annual Easter Egg Hunt, hikes, dance lessons, and many other activities in Sunderland and the surrounding areas. The town holds annual fall festivals in mid-October and a Memorial Day parade and ceremony. The Mount Toby state reservation is on the northern edge of Sunderland, hosting a large trail network that is open to hiking, mountain biking, skiing, snowmobiling, and hunting. The Sunderland Boat Ramp on the Connecticut River allows for swimming, fishing, and boating.