Iowa is a U.S. state located in the Midwestern United States, an area often referred to as the "American Heartland". Iowa was a part of the French colony of New France. After the Louisiana Purchase, settlers laid the foundation for an agriculture-based economy in the heart of the Corn Belt. Iowa is occasionally known, by Iowans, as the "Food Capital of the World". 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, 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 is Des Moines. Iowa has been listed as one of the safest states in which to live.
The United States of America is a federal republic consisting of fifty states and a federal district, as well as several territories. It is commonly called the United States (US, USA, U.S. or U.S.A.) and colloquially as America. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is situated in the northwest portion of the continent, with Canada to its east and Russia to its west across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific. The country also has several territories in the Pacific and Caribbean. At 3.79 million square miles (9.83 million km2) and with around 315 million people, the United States is the third- or fourth-largest country by total area, and the third-largest by both land area and population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse and is home to a variety of species.