Saint-Théophile, Quebec

45°56′N 70°29′W / 45.933°N 70.483°W / 45.933; -70.483^[1]Country CanadaProvince QuebecRegionChaudière-AppalachesRCMBeauce-SartiganConstitutedJune 28, 1975Government • MayorRoland Boucher • Federal ridingBeauce • Prov. ridingBeauce-SudArea • Total436.90 km² (168.69 sq mi) • Land427.78 km² (165.17 sq mi)Population • Total702 • Density1.6/km² (4/sq mi) • Pop 2016-2021 1.5% • Dwellings354Time zoneUTC−5 (EST) • Summer (DST)UTC−4 (EDT)Postal code(s)Area code(s)418 and 581Highways R-173
R-269Websitewww.sainttheophile.qc.ca

Saint-Théophile is a municipality in the Municipalité régionale de comté de Beauce-Sartigan in Quebec, Canada on the Canada–United States border. It is part of the Chaudière-Appalaches region and the population is 702 as of 2021. It is named after reverend Théophile Montminy, who had been chosen by the archdiocese to find a proper location for a church.

Saint-Théophile lies next to the border with Maine, and there is a border crossing on Route 173 within the municipality, in the hamlet of Armstrong. The Armstrong custom office is the third in importance in Quebec.

• Commission de toponymie du Québec
• Ministère des Affaires municipales, des Régions et de l'Occupation du territoire