United States of America is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America. 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 in the northwest of the continent, with Canada to the east and Russia to the west. The state of Hawaii is an archipelago in the mid-Pacific. The country covers 9.83 million square kilometers. The current population is over 310 million people so the United States has the world's third largest population, after China and India.
Thanks for information from
