People of United States

Population	303,824,650 (2008 estimate)
Population density	33 persons per sq km 86 persons per sq mi (2008 estimate)
Urban population distribution	81 percent (2005 estimate)
Rural population distribution	19 percent (2005 estimate)
Largest cities, with population	New York, 8,214,426 (2006) Los Angeles, 3,849,378 (2006) Chicago, 2,833,321 (2006)
Main languages	English, Spanish, French, German, Italian, Chinese, and many others
Chief religious affiliations	Protestant, 56 percent Roman Catholic, 27 percent Jewish, 2 percent
Life expectancy	78.1 years (2008 estimate)
Infant mortality rate	6 deaths per 1,000 live births (2008 estimate)
Literacy rate	99.5 percent (1995)
1 The United States hit the 300 million mark on October 17, 2006, 39 years after the population milestone of 200 million in 1967.