6. Idaho - $1,133 Average Annual Premium
Idaho has an average annual insurance premium of $1,133 according to Insure.com, good enough for sixth place on the top 10 cheapest states for car insurance in America. Close to 1.6-million residents live in Idaho with its largest city being Boise, which is also its capital. Of course, Idaho is most well known in America for its potatoes, often being referred to as the “Potato State.” It’s one of the few states in America without a major freeway linking its two largest metropolitan areas of Boise and Coeur d’Alene.