Capital City: Washington, D.C

Language: English (de facto)

Government: Federal presidential constitutional republic

Population: 331,893,745(2021)

Region: North America

Climatic Condition: The overall climate in the United States of America (USA) is temperate, with notable exceptions. Alaska has an Arctic tundra climate, while Hawaii and South Florida have a tropical climate. ... The northwest is wet, the southeast fairly wet and the central part of America is dry.

Currency: U.S. dollar ($) (USD)

Visa requirement:

https://www.usa.gov/visas-and-visitors