Trottier Middle School

Southborough is a town in Worcester County, Massachusetts, United States. It incorporates the villages of Cordaville, Fayville, and Southville. Its name is often informally shortened to Southboro, a usage seen on many area signs and maps. At the 2020 census, its population was 10,450 in 3,542 households.

As of 2021, 43% of land use was residential, with 35% open space, including one-tenth of the town's area that is flooded by the Sudbury Reservoir. Light industrial land use is concentrated along main roads, primarily Massachusetts Route 9, and there are several small business districts in the villages and along Route 9.