Iowa is a U.S. state in the Midwestern United States, bordered by the Mississippi River on the east and the Missouri River and the Big Sioux River on the west. Surrounding states include Wisconsin to the northeast, Illinois to the east, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.
In the latter half of the 20th century, Iowa's agricultural economy made the transition to a diversified economy of advanced manufacturing, processing, financial services, information technology, biotechnology, and green energy production.] Iowa is the 26th most extensive in land area and the 30th most populous of the 50 United States. Its capital and largest city by population is Des Moines. Iowa has been listed as one of the safest states in which to live. Its nickname is the Hawkeye State.