Columns: Regional County Municipality (RCM) | Population Canada 2011 Census | Land Area | Density (pop. per km2) | Seat of RCM
Acton | 15381 | km2 (sqmi) | 26.5 | Acton Vale | Brome-Missisquoi | 55621 | km2 (sqmi) | 33.7 | Cowansville | La Haute-Yamaska | 85042 | km2 (sqmi) | 133.6 | Granby | La Vallée-du-Richelieu | 116773 | km2 (sqmi) | 198.3 | McMasterville | Le Haut-Richelieu | 114344 | km2 (sqmi) | 122.1 | Saint-Jean-sur-Richelieu | Les Maskoutains | 84248 | km2 (sqmi) | 64.7 | Saint-Hyacinthe