| Population | 22,015,576 (July 2012 est.) |
| Age structure | 0-14 years: 18.2% (male 2,050,403/female 1,946,829) 15-24 years: 13.5% (male 1,524,835/female 1,447,607) 25-54 years: 42.2% (male 4,713,552/female 4,570,282) 55-64 years: 11.8% (male 1,294,224/female 1,308,231) 65 years and over: 14.4% (male 1,451,869/female 1,707,744) (2012 est.) |
| Median age | total: 37.9 years male: 37.1 years female: 38.6 years (2012 est.) |
| Population growth rate | 1.126% (2012 est.) |
| Birth rate | 12.28 births/1,000 population (2012 est.) |
| Death rate | 6.94 deaths/1,000 population (July 2012 est.) |
| Net migration rate | 5.93 migrant(s)/1,000 population (2012 est.) |
| Urbanization | urban population: 89% of total population (2010) rate of urbanization: 1.2% annual rate of change (2010-15 est.) |
| Major cities - population | Sydney 4.429 million; Melbourne 3.853 million; Brisbane 1.97 million; Perth 1.599 million; CANBERRA (capital) 384,000 (2009) |
| Sex ratio | at birth: 1.06 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1.03 male(s)/female 65 years and over: 0.85 male(s)/female total population: 1 male(s)/female (2011 est.) |
| Infant mortality rate | total: 4.55 deaths/1,000 live births male: 4.87 deaths/1,000 live births female: 4.21 deaths/1,000 live births (2012 est.) |
| Life expectancy at birth | total population: 81.9 years male: 79.48 years female: 84.45 years (2012 est.) |
| Total fertility rate | 1.77 children born/woman (2012 est.) |
| HIV/AIDS - adult prevalence rate | 0.1% (2009 est.) |
| HIV/AIDS - people living with HIV/AIDS | 20,000 (2009 est.) |
| HIV/AIDS - deaths | fewer than 100 (2009 est.) |
| Sanitation facility access | improved: urban: 100% of population rural: 100% of population total: 100% of population |
| Nationality | noun: Australian(s) adjective: Australian |
| Ethnic groups | white 92%, Asian 7%, aboriginal and other 1% |
| Religions | Protestant 27.4% (Anglican 18.7%, Uniting Church 5.7%, Presbyterian and Reformed 3%), Catholic 25.8%, Eastern Orthodox 2.7%, other Christian 7.9%, Buddhist 2.1%, Muslim 1.7%, other 2.4%, unspecified 11.3%, none 18.7% (2006 Census) |
| Languages | English 78.5%, Chinese 2.5%, Italian 1.6%, Greek 1.3%, Arabic 1.2%, Vietnamese 1%, other 8.2%, unspecified 5.7% (2006 Census) |
| 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: 21 years male: 20 years female: 21 years (2008) |
| Education expenditures | 4.5% of GDP (2007) |
| Maternal mortality rate | 7 deaths/100,000 live births (2010) |
| Health expenditures | 8.5% of GDP (2009) |
| Physicians density | 2.991 physicians/1,000 population (2009) |
| Hospital bed density | 3.82 beds/1,000 population (2009) |
| Obesity - adult prevalence rate | 16.4% (2005) |