President: Barack
H. Obama (2009) Vice
President: Joseph Biden (2009) Land area:
3,539,225 sq mi (9,166,601 sq km); total area: 3,718,691 sq mi
(9,631,420 sq km) Population (2010
est.): 310,232,863 (growth rate: 0.9%); birth rate: 13.8/1000;
infant mortality rate: 6.1/1000; life expectancy: 78.2; density per sq
mi: 85
Capital (2003 est.):
Washington, DC, 570,898 Largest cities (2003 est.): New York,
18,498,000 (metro area), 8,085,742 (city proper); Los Angeles,
12,146,000 (metro area), 3,819,951 (city proper); Chicago, 8,711,000
(metro area), 2,869,121 (city proper); Houston, 2,009,960;
Philadelphia, 1,479,339; Phoenix, 1,388,416; San Diego, 1,226,753; San
Antonio, 1,214,725; Dallas, 1,208,318; Detroit, 911,402 Monetary unit: dollar More Facts & Figures |
