St. Boniface lies in the southeast quadrant of Winnipeg, running along the east shore of the Seine River and extending out to Plessis Rd. The area north of Carrière Ave extends west to the Red River. It is bounded to the north by a set of railroad tracks behind Mission St, and to the south by the Perimeter Hwy. The main east-west thoroughfares are Marion St (Route 115), Fermor Ave (Route 135), and Bishop Grandin Blvd (Route 165). The main north-south thoroughfares are Archibald St (Route 30), and Lagimodière Blvd (Route 20).