Gloucester is a city in Essex County, Massachusetts, in the United States. It sits on Cape Ann and is part of Massachusetts's North Shore. The population was 28,789 at the 2010 U.S. Census. An important center of the fishing industry and a popular summer destination, Gloucester consists of an urban core on the north side of the harbor and the outlying neighborhoods of Annisquam, Bay View, Lanesville, Folly Cove, Magnolia, Riverdale, East Gloucester, and West Gloucester.
The boundaries of Gloucester originally included the town of Rockport, in an area dubbed "Sandy Bay". That village separated formally on February 27, 1840. In 1873, Gloucester was reincorporated as a city.
Gloucester was founded at Cape Ann by an expedition called the "Dorchester Company" of men from Dorchester (in the county of Dorset, England) chartered by James I in 1623. It was one of the first English settlements in what would become the Massachusetts Bay Colony, and predates both Salem in 1626 and Boston in 1630. The first company of pioneers made landing at Half Moon Beach and settled nearby, setting up fishing stages in a field in what is now Stage Fort Park.