Acton is a suburban town in Middlesex County, Massachusetts, United States about twenty-one miles west-northwest of Boston along Route 2 west of Concord and about ten miles (18 km) southwest of Lowell. The population was 20,331 at the 2000 census. It is bordered by Westford and Littleton to the north, Concord and Carlisle to the east, Stow and Maynard to the south, and Boxborough to the west. Acton became an incorporated town in 1735. The town employs the Open Town Meeting form of government with a Town Manager and an elected, 5-member Board of Selectmen. Acton was named the 16th Best Place To Live in the country by Money Magazine in 2009, and the local high school, Acton-Boxborough Regional High School, was named a Blue Ribbon School by the U.S. Department of Education in 2009.