Iowa is a U.S. state in the Midwestern United States, a region sometimes called the "American Heartland". Iowa is bordered by the Mississippi River on the east and the Missouri River and the Big Sioux River on the west; it is the only US state whose eastern and western borders are formed entirely by rivers. Iowa is bordered by Wisconsin and Illinois to the east, Missouri to the south, Nebraska and South Dakota to the west, and Minnesota to the north.
In colonial times, Iowa was a part of French Louisiana; its current state flag is patterned after the flag of France. After the Louisiana Purchase, settlers laid the foundation for an agriculture-based economy in the heart of the Corn Belt.