The aggregate of the territories of the following regional county municipalities:
Regional county municipality of Acton
Regional county municipality of Arthabaska
Regional county municipality of Asbestos
Regional county municipality of Brome-Missisquoi
Regional county municipality of Coaticook
Regional county municipality of Drummond
Regional county municipality of La Haute-Yamaska
Regional county municipality of Granit
Regional county municipality of Haut-Saint-François
Regional county municipality of Val-Saint-François
Regional county municipality of Memphrémagog
Regional county municipality of Sherbrooke