Bedford is a town in Middlesex County, Massachusetts, United States. It is within the Greater Boston area, 15 miles (24 km) north-west of the city of Boston. The population of Bedford was 12,595 at the 2010 census.
According to the United States Census Bureau, the town has a total area of 13.9 square miles (36 km2), of which 13.7 square miles (35 km2) is land and 0.1 square miles (0.26 km2), or 0.94%, is water. Bedford is approximately 15 miles (24 km) away from the coast. Bedford is a relatively circular town. Its neighbors, clockwise, starting from 12 o'clock, are: Billerica, Burlington, Lexington, Lincoln, Concord, and Carlisle. In addition to the Concord River which forms part of the town's borders, the Shawsheen River flows through town. Vine Brook flows from Lexington, Massachusetts, through Burlington, Massachusetts, and into the Shawsheen in Bedford. In the 1840s, a large paper mill was built on Vine Brook, that supplied many of the jobs in town.
As of the census of 2000, there were 12,595 people, 4,621 households, and 3,419 families residing in the town. The population density was 916.7 people per square mile (353.9/km≤). There were 4,708 housing units at an average density of 342.7 per square mile (132.3/km≤).