The large territory of the municipality is only developed and inhabited in the south, where the population centres of Saint-Adolphe, Stoneham, and Tewkesbury are located.

Large portions of the north are included in the Jacques-Cartier National Park and the Laurentides Wildlife Reserve.

The terrain is hilly, part of the Laurentian Mountains, and crossed by the Jacques-Cartier, upper Sainte-Anne, and Hurons Rivers.

The completion of the railroad, owned by the St. Charles and Huron River Railway Company, between Stoneham-et-Tewkesbury and Loretteville in 1912 led to intensive logging in the area.

Provincially, Stoneham-et-Tewkesbury is part of the Chauveau electoral district and is represented by Sylvain Lévesque of the Coalition Avenir Québec since 2018.