Tobique-Mactaquac is a large rural riding in the western part of New Brunswick, along the United States border. The riding includes the counties of Victoria and Carleton, part of York County comprised of the parishes of Bright, Canterbury, Douglas, North Lake, Queensbury, Stanley and Southampton. It also takes in part of the parish of Saint Marys lying north of Campbell Creek and the villages of Canterbury, Meductic, Millville, Nackawic and Stanley and part of the county of Madawaska comprised of the Parish of Saint-Andre and the village of St. Andre.
Tobique-Mactaquac was created in 1996 from portions of the old ridings of Carleton-Charlotte, Fredericton-York-Sunbury and Madawaska-Victoria. A large number of the constituents in the riding are employed in agriculture, forestry, metal fabrication and the transportation industry.