The canton of Montereau-Fault-Yonne is a French administrative division, located in the arrondissement of Provins, in the Seine-et-Marne département (Île-de-France région). Its population was 69,165 in 2019. Composition At the French canton reorganisation which came into effect in March 2015, the canton was expanded from 14 to 25 communes (of which 5 merged into the new commune Moret-Loing-et-Orvanne): Barbey La Brosse-Montceaux Cannes-Écluse Champagne-sur-Seine Courcelles-en-Bassée Esmans Forges La Grande-Paroisse Laval-en-Brie Marolles-sur-Seine Misy-sur-Yonne Montereau-Fault-Yonne Moret-Loing-et-Orvanne Saint-Germain-Laval Saint-Mammès Salins Thomery Varennes-sur-Seine Vernou-la-Celle-sur-Seine Villecerf Ville-Saint-Jacques See also Cantons of the Seine-et-Marne department Communes of the Seine-et-Marne department References Montereau Fault Yonne