The United States of America, often referred to as the United States or America, is a country primarily located in North America. It consists of 50 states, a federal district, and five territories. With an area of approximately 9.8 million square kilometers, it is the world's third- or fourth-largest country. The United States shares significant borders with Canada to the north and Mexico to the south and has coasts on the Atlantic, Pacific, and Arctic oceans.
The United States is a federal republic and a representative democracy with three separate branches of government, including a bicameral legislature. It is known for its highly diverse culture and geography, rich history, and influence in world affairs.
Its economy is the world's largest, characterized by an abundant natural resources, high productivity, and a well-developed infrastructure. The U.S. is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries.
It is also known for its advancements in technology and large popular culture industries, including Hollywood (film) and Silicon Valley (technology and computing). The United States has numerous prestigious universities, including Ivy League schools such as Harvard and Columbia.
The US has a mixed culture with varying customs and traditions due to its multicultural population. English is the primary language spoken, and Christianity is the main religion, though the country is known for its religious and cultural diversity.
Overall, the US plays a critical role in global economics, politics, scientific research and development, military matters, and popular culture.
