Hawaii is a U.S. state located in the Pacific Ocean. It is the only state outside North America, the only island state, and the only state in the tropics. Hawaii is also one of a handful of U.S. states to have once been an independent nation. Hawaii encompasses nearly the entire Hawaiian archipelago, comprised of 137 volcanic islands spanning 1,500 miles (2,400 km).

Iowa is a state in the Midwestern United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states - Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.