Population:

303,824,646 (July 2008 est.)

Age structure:

0-14 years: 20.1% (male 31,257,108/female 29,889,645)
15-64 years: 67.1% (male 101,825,901/female 102,161,823)
65 years and over: 12.7% (male 16,263,255/female 22,426,914) (2008 est.)

Median age:

total: 36.7 years
male: 35.4 years
female: 38.1 years (2008 est.)

Population growth rate:

0.883% (2008 est.)

Birth rate:

14.18 births/1,000 population (2008 est.)

Death rate:

8.27 deaths/1,000 population (2008 est.)

Net migration rate:

2.92 migrant(s)/1,000 population (2008 est.)

Sex ratio:

at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1 male(s)/female
65 years and over: 0.73 male(s)/female
total population: 0.97 male(s)/female (2008 est.)

Infant mortality rate:

total: 6.3 deaths/1,000 live births
male: 6.95 deaths/1,000 live births
female: 5.62 deaths/1,000 live births (2008 est.)

Life expectancy at birth:

total population: 78.14 years
male: 75.29 years
female: 81.13 years (2008 est.)

Total fertility rate:

2.1 children born/woman (2008 est.)

HIV/AIDS - adult prevalence rate:

0.6% (2003 est.)

HIV/AIDS - people living with HIV/AIDS:

950,000 (2003 est.)

HIV/AIDS - deaths:

17,011 (2005 est.)

Nationality:

noun: American(s)
adjective: American

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)
note: a separate listing for Hispanic is not included because the US Census Bureau considers Hispanic to mean a person of Latin American descent (including persons of Cuban, Mexican, or Puerto Rican origin) living in the US who may be of any race or ethnic group (white, black, Asian, etc.); about 15.1% of the total US population is Hispanic

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.)

Languages:

English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census)
note: Hawaiian is an official language in the state of Hawaii

Literacy:

definition: age 15 and over can read and write
total population: 99%
male: 99%
female: 99% (2003 est.)

School life expectancy (primary to tertiary education):

total: 16 years
male: 15 years
female: 16 years (2006)

Education expenditures - percent of GDP:

5.3% (2005)