The United States of America is located in the continent North America. The size of the country is roughly 9,833,517 sq km. Its population is approximately 330 million people. The capital is Washington D.C. The dialling code for the U.S. is +1.

The U.S.A. national flag consists of 50 white stars (50 since July 4, 1960) on a blue canton with a field of 13 alternating stripes; there are 7 red and 6 white stripes. The 50 stars stand for the 50 states of the country, and the 13 stripes stand for the original 13 states. The national flag has changed officially 26 times since 1777. The proportion of the flag is 10:19.