East Bridgewater is a town in Plymouth County, Massachusetts, United States. The population was 14,440 at the 2020 census. It is also a part of Massachusetts' 8th congressional district, of which it is represented by Stephen Lynch.

Plymouth County is a county in the U.S. state of Massachusetts, south of Boston. As of the 2020 census, the population was 530,819. Its county seats are Plymouth and Brockton. In 1685, the county was created by the Plymouth General Court, the legislature of Plymouth Colony, predating its annexation by the Massachusetts Bay Colony.