Whitinsville is an unincorporated village within the town of Northbridge and was founded by the Whitin family, after whom it is also named. It is located on the Mumford River, a tributary of the Blackstone River. Whitinsville has been designated as a mill village of national historic significance to America's earliest industrialization, and is one of only four villages selected by the John H. Chaffee Blackstone River Valley National Historic Corridor Commission to receive this designation.