Acton is located at 42°29′N 71°27′W / 42.483°N 71.450°W . According to the United States Census Bureau, the town has a total area of 20.3 square miles (53 km ), of which 20.0 square miles (52 km ) is land and 0.3 square

Acton's history reflects the history of Massachusetts, New England, and the United States. It was first settled by Native Americans who used the Assabet, Sudbury and

Conservation lands
Acton has a total of over 1,650 acres (7 km ) of town-owned conservation lands.
• Acton Arboretum: A park in the center of Acton which consists of

Libraries
Acton has two public libraries: the Acton Memorial Library and the West Acton Citizens' Library. The Acton Memorial Library was given to the town of Acton by William Allan Wilde as a memorial to its Civil War veterans

According to the 2010 census, there were 21,924 residents, a 7.84% increase from 2000 and 5,958 families residing in the town. The

Acton uses the Open Town Meeting form of town government. The town charter specifies that the annual town meeting must begin on the first Monday in April. The

Acton is part of the Acton Boxborough Regional School District (ABRSD) along with Boxborough. The town has four elementary schools