Streetdirectory.com USA, provides a variety of customized USA Maps and streetmaps. Here you can find USA Hotels, landmarks, Popular Places and Businesses. USA or America is a federal constitutional republic comprising fifty states and a federal district. There are 5 different states with the most number of businesses in USA. They are California Businesses (1.5Mil), Florida Businesses (852K), Illinois Businesses (500K), New York (885K)and Texas (964K). These businesses along with another 10 million businesses can be found at our USA Business Directory. With a total of 3.79 million square miles (9.83 million km2) and with over 308 million people, the United States is the world's largest national economy, with an estimated 2010 GDP of $14.7 trillion.