Montague is a town in Franklin County, Massachusetts, United States. The population was 8,437 at the 2010 census. It is part of the Springfield, Massachusetts metropolitan statistical area.The villages of Montague Center, Montague City, Lake Pleasant, Millers Falls, and Turners Falls are located in the town of Montague; Turners Falls, comprising over half the population of the town and its main business district, is generally used as a metonym for the entire town of Montague..