| United States of America :
Geographic coordinates
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38 00 N, 97 00 W
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| United States of America :
Population growth rate
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0.97% (2010 est.)
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| United States of America :
Birth rate
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13.83 births/1,000 population (2010 est.)
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| United States of America :
Death rate
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8.38 deaths/1,000 population (July 2010 est.)
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| United States of America :
People living with HIV/AIDS
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1.2 million (2007 est.)
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| United States of America :
Independence
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4 July 1776
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| United States of America :
National holiday
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Independence Day, 4 July
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| United States of America :
Constitution
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17 September 1787
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| United States of America :
GDP
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purchasing power parity - $14.26 trillion (2009 est.)
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| United States of America :
GDP - per capita
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purchasing power parity - $46,400 (2009 est.)
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| United States of America :
Electricity - consumption
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3.873 trillion kWh (2008 est.)
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| United States of America :
Exports
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$776 billion capital goods, automobiles, industrial supplies and raw materials, consumer goods, agricultural products
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| United States of America :
Imports
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$1.223 trillion crude oil and refined petroleum products, machinery, automobiles, consumer goods, industrial raw materials, food and beverages
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| United States of America :
Telephones
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150 million (2008)
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| United States of America :
Mobile cellular
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270 million (2008)
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| United States of America :
Radio broadcast stations
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AM 4,789, FM 8,961, shortwave 19 (2006)
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| United States of America :
Radios
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575 million
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| United States of America :
Television broadcast stations
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2,218 (2006)
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| United States of America :
Televisions
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219 million
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| United States of America :
Internet country code
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.us
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| United States of America :
Internet Service Providers (ISPs)
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383 million (2009)
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| United States of America :
Internet users
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231 million (2008)
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| United States of America :
Railways
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226,427 km
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| United States of America :
Highways
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6,465,799 km
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| United States of America :
Waterways
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41,009 km (19,312 km used for commerce)
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| United States of America :
Pipelines
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petroleum products 244,620 km; natural gas 548,665 km (2009)
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| United States of America :
Ports and harbors
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Corpus Christi, Duluth, Hampton Roads, Houston, Long Beach, Los Angeles, New York, Philadelphia, Tampa, Texas City
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| United States of America :
Merchant marine
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422 ships
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| United States of America :
Airports
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15,095 (2009)
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| United States of America :
Heliports
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126 (2009)
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| United States of America :
Military branches
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United States Armed Forces: US Army, US Navy (includes Marine Corps), US Air Force, US Coast Guard; note - Coast Guard administered in peacetime by the Department of Homeland Security, but in wartime reports to the Department of the Navy (2009)
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| United States of America :
Military expenditures
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4.06% of GDP (2005 est.)
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