Aston-Jonction (French pronunciation: [astɔn ʒɔ̃ksjɔ̃]), formerly known in English as Aston Junction,[5] is a municipality in the Centre-du-Québec region of the province of Quebec, Canada.

[6] The population as of the Canada 2021 Census was 441.

Population trend:[7] (+) Amalgamation of the Parish of Saint-Raphaël-Partie-Sud and the Village of Aston-Jonction on March 26, 1997.

Mother tongue language (2006)[8] The Aston Junction railway station of Canadian National Railway was served by The Scotian passenger train in 1954.

[9] It was 88.8 miles by rail from Montreal.