Belmont is a town in Middlesex County, Massachusetts. It is a western suburb of Boston, Massachusetts, United States; and is part of the greater Boston metropolitan area. Its population was 26,171 as of July 1, 2016.
Belmont remains a primarily residential suburb with little growth since the 1950s. It is best known for the mansion-filled Belmont Hill neighborhood, although most residents live in more densely settled, low-lying areas around the Hill. There are three major commercial centers in the town: Belmont Center in the center, Cushing Square in the south, and Waverley Square in the west. Town Hall and other civic buildings are located in Belmont Center.