United States of America

The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 5 states, a federal district, five major unincorporated territories, 326 Indian reservations, and some minor possessions. At nearly 3.8 million square miles (9.8 million square kilometers), it is the world's third- or fourth-largest country by geographic area. The United States shares land borders with Canada to the north and Mexico to the south as well as maritime borders with the Bahamas, Cuba, Russia, and other countries. With a population of more than 332 million people, it is the third most populous country in the world. The national capital is Washington, D.C., and the most populous city and financial center is New York City.