Swampscott is a town in Essex County, Massachusetts, United States, located 15 miles up the coast from Boston in an area known as the North Shore. The population was 15,111 as of the 2020 United States Census. A former summer resort on Massachusetts Bay, Swampscott is today a fairly affluent residential community and includes the village of Beach Bluff…Swampscott is a town in Essex County, Massachusetts, United States, located 15 miles up the coast from Boston in an area known as the North Shore. The population was 15,111 as of the 2020 United States Census. A former summer resort on Massachusetts Bay, Swampscott is today a fairly affluent residential community and includes the village of Beach Bluff, as well as part of the neighborhood of Clifton.