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. An important centre of the fishing industry and a popular summer destination, Gloucester consists of an urban core on the north side of the harbour and the outlying neighbourhoods of Annisquam, Bay View, Lanesville, Folly Cove, Magnolia, Riverdale, East Gloucester, and West Gloucester.
Gorton's of Gloucester, Mighty Mac, Gloucester Engineering, Good Harbor Consulting, Para Research, Aid-Pack, Cyrk, and Varian Semiconductor are among the companies based in Gloucester.
Gloucester has a population of over 28,789 people.