Brockton, Massachusetts Brockton, Massachusetts Brockton is a city in Plymouth County, Massachusetts, United States; the population was 95,314 in the 2015 Census. Brockton, along with Plymouth, are the county seats of Plymouth County. Brockton is the seventh largest city in Massachusetts and is sometimes referred to as the "City of Champions", due to the success of native boxers Rocky Marciano and Marvin Hagler, as well as its successful Brockton High School sports programs. Two of the villages within the city are Montello and Campello, both have the distinction of having their own MBTA Commuter Rail Stations and post offices. Campello is the
Brockton, Montana Brockton, Montana Brockton is a town in Roosevelt County, Montana, United States. The population was 255 at the 2010 census. Brockton's first post office was established in 1904. Fort Peck Indian Reservation was opened to non-Native settlers in 1913 and the town boomed. It was incorporated in 1952. Brockton is located at (48.149531, -104.916383). According to the United States Census Bureau, the town has a total area of , all of it land. As of the census of 2010, there were 255 people, 70 households, and 61 families residing in the town. The population density was . There were 77