Population: 275,562,673 (July 2000 est.)

Age structure:
0-14 years: 21.25% (male 29,956,875; female 28,597,880)
15-64 years: 66.11% (male 90,345,154; female 91,827,471)
65 years and over: 12.64% (male 14,472,865; female 20,362,428) (2000 est.)

Population growth rate: 0.91% (2000 est.)

Birth rate: 14.2 births/1,000 population (2000 est.)

Death rate: 8.7 deaths/1,000 population (2000 est.)

Net migration rate: 3.5 migrant(s)/1,000 population (2000 est.)

Sex ratio:
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.71 male(s)/female
total population: 0.96 male(s)/female (2000 est.)

Infant mortality rate: 6.82 deaths/1,000 live births (2000 est.)

Life expectancy at birth:
total population: 77.12 years
male: 74.24 years
female: 79.9 years (2000 est.)

Total fertility rate: 2.06 children born/woman (2000 est.)

Nationality:
noun: American(s)
adjective: American

Ethnic groups: white 83.5%, black 12.4%, Asian 3.3%, Amerindian 0.8% (1992)
note: a separate listing for Hispanic is not included because the US Census Bureau considers Hispanic to mean a person of Latin American descent (especially of Cuban, Mexican, or Puerto Rican origin) living in the US who may be of any race or ethnic group (white, black, Asian, etc.)

Religions: Protestant 56%, Roman Catholic 28%, Jewish 2%, other 4%, none 10% (1989)

Languages: English, Spanish (spoken by a sizable minority)

Literacy:
definition: age 15 and over can read and write
total population: 97%
male: 97%
female: 97% (1979 est.)