This list of mammals of Idaho includes all wild mammal species indigenous to the U.S. state of Idaho.[1][2] Five mammal species introduced in the state include the eastern gray squirrel, Virginia opossum, house mouse, black rat, and the Norway rat. Mammals included in this list are drawn from the Idaho Department of Fish and Game.[3]
Family: Soricidae
Family: Talpidae
Family: Didelphidae
Family: Castoridae
Family: Geomyidae
Family: Heteromyidae
Family: Erethizontidae
Family: Dipodidae
Family: Cricetidae
Family: Muridae
Family: Sciuridae
Family: Leporidae
Family: Ochotonidae
Family: Vespertilionidae
Family: Molossidae
Family: Felidae
Family: Canidae
Family: Ursidae
Family: Mephitidae
Family: Mustelidae
Family: Procyonidae
Family: Antilocapridae
Family: Cervidae
Family: Bovidae