Northbridge is a town in Worcester County, Massachusetts, United States. The population was 15,707 at the 2010 census. The Northbridge Town Hall is located at 7 Main Street in Whitinsville. The town is now a part of the Blackstone River Valley National Heritage Corridor, of the National Park Service. Northbridge claims to history include: Native American Nipmuc lands, Colonel John Spring, who led the Uxbridge militia training company in the American Revolution, Samuel Spring, Revolutionary War Chaplain, the Residence of Ezra T. Benson 1830-1832, the birthplace of President Millard Fillmore's mother, Phoebe, and home to the Whitin Machine Works from 1831 to 1964