English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census) - US dollar (USD)
Government: federal republic
Area: 3,755,241 miles2 (9,631,418 km2)
Population: 307,212,123 (July 2009 est.)
Electricity: 120V / 60Hz
Calling Code: +1
Internet TLD: .us, .edu, .gov, .mil (most sites use .com, .net, .org)
Time Zone: UTC -4 to UTC -10
Religion: Protestant 51.3%, Roman Catholic 23.9%, Mormon 1.7%, other Christian 1.6%, Jewish 1.7%, Buddhist 0.7%, Muslim 0.6%, other or unspecified 2.5%, unaffiliated 12.1%, none 4% (2007 est.)