Hanson is a town in Plymouth County, Massachusetts, United States and is one of the inland towns of the South Shore. The population was 10,209 at the 2010 census.
Hanson was first settled in 1632 as the western parish of Pembroke. The town was officially incorporated in 1820, and was named for Maryland publisher of the Federal Republican newspaper and U.S. Senator Alexander Contee Hanson. Hanson was a champion of free speech and freedom of the press, and he was severely beaten and his newspaper offices were attacked and destroyed by an angry mob after he published an article that was critical of the administration shortly after the outbreak of the War of 1812.
The town's early industry revolved around farming, as well as bog iron and quarrying. Mills also popped up along the rivers during the nineteenth century. Today the town is mostly residential, with some farming and cranberry farming. Ocean Spray was first started by several bogs in Hanson, and remained headquartered in Hanson before moving to Plymouth in September 1977.
Hanson was home to the Cranberry Specialty Hospital, which opened in 1919 as the Plymouth County Hospital for Tuberculosis and closed in 1992.
According to the United States Census Bureau, the town has a total area of 15.7 square miles (40.6 km2), of which 15.0 square miles (38.9 km2) is land and 0.66 square miles (1.7 km2), or 4.21%, is water. It is the 250th largest town in the Commonwealth, over seven square miles smaller than the average. Hanson is considered one of the inland towns of Massachusetts's South Shore, and is bordered by Rockland and Hanover to the north, Pembroke to the east, Halifax to the south, East Bridgewater to the west, and Whitman to the northwest.