Sudbury is a town in Middlesex County, Massachusetts, United States. As of the 2010 census, it had a population of 17,659. The town, located in Boston's MetroWest, has a rich colonial history.
According to the United States Census Bureau, the town has a total area of 24.6 square miles (64 km2), of which 24.4 square miles (63 km2) is land and 0.3 square miles (0.78 km2), or 1.06%, is water. The highest point in Sudbury is on the north slope of Nobscot Hill, and the highest summit is Tippling Rock, which commands a great view of the west of Boston and the tops of the Hancock and Prudential buildings in downtown. Sudbury is bordered by Wayland (the Sudbury River) on the east; Framingham on the south; Hudson, Maynard, Marlborough, and Stow on the west; Concord on the northeast; and Acton on the north. A larger town, Sudbury also shares a common corner with Lincoln, with which it shares a regional high school. Sudbury is 20 miles (32 km) west of Boston, 26 miles (42 km) east of Worcester, and 194 miles (312 km) from New York City. The area of original town of Sudbury in 1650 included most of the area within the present towns of Wayland and Maynard and all of the area within the present town of Sudbury.
As of the census of 2000, there were 16,841 people, 5,504 households, and 4,749 families residing in the town. The population density was 691.1 people per square mile (266.8/kmē). There were 5,590 housing units at an average density of 229.4 per square mile (88.6/kmē).