The United States of America is a federal democratic republic of forty-four states and the District of Columbia. The country is located in eastern-central North America, bordered by Quebec and Canada to the north, Cascadia and the California Republic to the west and the Confederation of American States to the south. At 2,675,885 sq. miles and with over 200 million people, the United States is one of the largest countries in the world, both by size and population. It is one of the world's most racially, ethnically and religiously nations in the world.