General Information

Capital : WASHINGTON, DC

Major Cities : New York City, Los Angeles, Chicago, San Francisco, Houston, Phoenix, San Jose, San Diego, Dallas, Boston, Philadelphia, Detroit, Seattle, Denver, Miami

Official Language : English

Time Zone : varies from GMT-10 in Honolulu to GMT-5 in New York City
World Time Clock

Currency : US dollar (USD)
Free Currency Calculator

Population : 306 million (2009 est) - 3rd largest in the world.
Median Age : 36.7 years (2008)
Growth Rate : 0888% (2008 est)
Net migration rate : 3.05/1000 population
Life expectancy at birth : 78.10 years

GDP per capita : $46859

Total Area: 9,826,630 sq km
3rd largest country by size in the world.

Ethnic groups : white 79.96%, black 12.85%, Asian 4.43%, Amerindian and Alaska native 0.97%, native Hawaiian and other Pacific islander 0.18%, two or more races 1.61% (July 2007 estimate)

Religions : 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.)

Imports : China 16.9%, Canada 15.7%, Mexico 10.6%, Japan 7.4%, Germany 4.8% (2006)

With help from CIA World Factbook
https://www.cia.gov/library/publications/the-world-factbook/geos/us.html