 USA The USA is located in North America. It is one of the biggest countries in the world. The capital of the USA is Washington DC. There are many cities which are very popular among tourists. It's New York with its Statue of Liberty and skyscrapers. Then it is Los Angeles with its famous Hollywood sign and Hollywood Walk of Fame. There is Miami with thousands of hotels by the ocean. Las Vegas is famous with casinos. The USA is also known for its cultural achievements. There are a lot of subcultures in America and you can see people from all over the world there. The population of the United States of America was over 324 million in 2016, which accounts for 4.3% of the total world population. The national language is English, but many people also speak Spanish, French, German and Chinese.