Braintree officially the Town of Braintree, is a suburban New England city in Norfolk County, Massachusetts, United States. Although officially known as a town, Braintree adopted a municipal charter, effective 2008, with a mayor-council form of government and is considered a city under Massachusetts law. The population was 35,744 at the 2010 census. The town is part of the Greater Boston area with access to the MBTA Red Line and is a member of the Metropolitan Area Planning Commission’s South Shore Coalition. The first and current mayor of Braintree is Joe Sullivan. Braintree, Massachusetts is named after Braintree, Essex in England.
The town of Braintree was settled in 1625, colonized in 1635 and incorporated in 1640 and named after the English town of Braintree. It comprised land that was later split into Quincy (incorporated in 1792), Randolph (1793), and Holbrook (1872). Braintree was part of Suffolk County until the formation of Norfolk County in 1793.