name: United States of America area: 9,372,610 km2 population: 318,162,000 density: 34.2/km2 government style: federal presidential constitutional republic capital: Washington DC (601,723) main towns: New York City, Los Angeles, Chicago, Dallas, Houston, Philadelphia main religion: Christian main languages: English (official), Spanish highest point: Mount McKinley (6,168 m) currency: US Dollar |