Sutton is a town in southeastern Quebec. It is part of the Brome-Missisquoi Regional County Municipality in the administrative region of the Estri…Sutton is a town in southeastern Quebec. It is part of the Brome-Missisquoi Regional County Municipality in the administrative region of the Estrie. The population as of the Canada 2021 Census was 4,548. Known for its scenic landscapes and outdoor recreational activities, Sutton is part of the Eastern Townships and a popular destination for tourists.