Population: 18,783,551 (July 1999 est.)

Age structure:
0-14 years: 21% (male 2,023,569; female 1,926,901)
15-64 years: 66% (male 6,317,045; female 6,172,735)
65 years and over: 13% (male 1,022,485; female 1,320,816) (1999 est.)

Population growth rate: 0.9% (1999 est.)

Birth rate: 13.21 births/1,000 population (1999 est.)

Death rate: 6.9 deaths/1,000 population (1999 est.)

Net migration rate: 2.66 migrant(s)/1,000 population (1999 est.)

Sex ratio:
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.77 male(s)/female
total population: 0.99 male(s)/female (1999 est.)

Infant mortality rate: 5.11 deaths/1,000 live births (1999 est.)

Life expectancy at birth:
total population: 80.14 years
male: 77.22 years
female: 83.23 years (1999 est.)

Total fertility rate: 1.81 children born/woman (1999 est.)

Nationality:
noun: Australian(s)
adjective: Australian

Ethnic groups: Caucasian 92%, Asian 7%, aboriginal and other 1%

Religions: Anglican 26.1%, Roman Catholic 26%, other Christian 24.3%, non-Christian 11%

Languages: English, native languages

Literacy:
definition: age 15 and over can read and write
total population: 100%
male: 100%
female: 100% (1980 est.)