This statistic shows the median age of the population in Australia from 1950 to 2100. The median age of a population is an index that divides the population into two equal groups: half of the population is older than the median age and the other half younger. In 2020, the median age of Australia's population was 36.9 years.

In June 2022, it was estimated that around 7.3 percent of Australians were aged between 25 and 29, and the same applied to people aged between 30 and 34. All in all, about 55 percent of Australia’s population was aged 35 years or older as of June 2022. At the same time, the age distribution of the country also shows that the share of children under 14 years old was still higher than that of people over 65 years old. A breakdown of Australia’s population growth Australia is the sixth-largest country in the world, yet with a population of around 26 million inhabitants, it is only sparsely populated. Since the 1970s, the population growth of Australia has remained fairly constant. While there was a slight rise in the Australian death rate in 2022, the birth rate of the country decreased after a slight rise in the previous year. The fact that the birth rate is almost double the size of its death rate gives the country one of the highest natural population growth rates of any high-income country.
National distribution of the population Australia’s population is expected to surpass 28 million people by 2028. The majority of its inhabitants live in the major cities. The most populated states are New South Wales, Victoria, and Queensland. Together, they account for over 75 percent of the population in Australia.

Motor Vehicles Registration: Estimated Average Age: Buses: Australia data was reported at 11.900 Year in 2021. This records an increase from the previous number of 11.724 Year for 2020. Motor Vehicles Registration: Estimated Average Age: Buses: Australia data is updated yearly, averaging 11.000 Year from Jan 2001 (Median) to 2021, with 21 observations. The data reached an all-time high of 11.900 Year in 2021 and a record low of 9.900 Year in 2001. Motor Vehicles Registration: Estimated Average Age: Buses: Australia data remains active status in CEIC and is reported by Australian Bureau of Statistics. The data is categorized under Global Database’s Australia – Table AU.TA004: Motor Vehicles Registration: Estimated Average Age: by Type and State (Discontinued).

Australia Population: Working Age: Age 15-74 data was reported at 20,737,625.457 Person in 2026. This records an increase from the previous number of 20,430,371.770 Person for 2025. Australia Population: Working Age: Age 15-74 data is updated yearly, averaging 12,990,055.545 Person from Dec 1960 (Median) to 2026, with 67 observations. The data reached an all-time high of 20,737,625.457 Person in 2026 and a record low of 6,972,703.116 Person in 1960. Australia Population: Working Age: Age 15-74 data remains active status in CEIC and is reported by Organisation for Economic Co-operation and Development. The data is categorized under Global Database’s Australia – Table AU.OECD.EO: Labour Force: Forecast: OECD Member: Annual. POP1574 - Working-age population, age 15-74 Population data are based on data reported to the OECD Statistics Directorate by member countries via an annual national accounts questionnaire. For the projection period, series are extended using Eurostat projections (EUROPOP2023) for European countries, and United Nations (WPP2022) for other countries. The data is further adjusted by the OECD.

In a survey conducted in Australia in 2021, the average age that young respondents aged 14 to 18 years reported first experiencing vaginal sex was **** years. The average age for first viewing pornography was **** years.

The average age at which Australians got married for the first time increased for both men and women between 1997 and 2021. As of 2021, males who married for the first time were on average 30.8 years old, while females were on average slightly younger at 29.4 years old.

first time marriage

Wedding bells chime

The most popular months to get married in 2017 were October and November, with many Australians opting to have their wedding in spring. In fact, over 20 percent of couples chose their wedding date based on a preference for a specific season.

In 2017, amendments to the Marriage Act meant that same-sex couples in Australia could also get legally married. This may change marriage figures in the years immediately following, with many long-term same-sex couples choosing to get married with this law change.

Happily ever after?

While the average age of first marriages has increased, the number of Australians tying the knot has decreased, with the crude marriage rate decreasing continuously across the country. The divorce rate has decreased over the years, largely related to the reduction in the number of marriages overall. In 2017, almost half of all divorces in Australia involved children; this share has not changed significantly over the past five years.

Motor Vehicles Registration: Estimated Average Age: Passenger Vehicles: Northern Territory data was reported at 9.900 Year in 2021. This records an increase from the previous number of 9.497 Year for 2020. Motor Vehicles Registration: Estimated Average Age: Passenger Vehicles: Northern Territory data is updated yearly, averaging 8.900 Year from Jan 2001 (Median) to 2021, with 21 observations. The data reached an all-time high of 9.900 Year in 2021 and a record low of 8.600 Year in 2009. Motor Vehicles Registration: Estimated Average Age: Passenger Vehicles: Northern Territory data remains active status in CEIC and is reported by Australian Bureau of Statistics. The data is categorized under Global Database’s Australia – Table AU.TA004: Motor Vehicles Registration: Estimated Average Age: by Type and State (Discontinued).

Graph and download economic data for Infra-Annual Labor Statistics: Working-Age Population Total: From 15 to 64 Years for Australia (LFWA64TTAUA647S) from 1978 to 2024 about working-age, 15 to 64 years, Australia, and population.

Australia Motor Vehicles Registration: Estimated Average Age: Buses: Victoria data was reported at 12.400 Year in 2021. This records an increase from the previous number of 12.081 Year for 2020. Australia Motor Vehicles Registration: Estimated Average Age: Buses: Victoria data is updated yearly, averaging 11.500 Year from Jan 2001 (Median) to 2021, with 21 observations. The data reached an all-time high of 12.400 Year in 2021 and a record low of 10.500 Year in 2001. Australia Motor Vehicles Registration: Estimated Average Age: Buses: Victoria data remains active status in CEIC and is reported by Australian Bureau of Statistics. The data is categorized under Global Database’s Australia – Table AU.TA004: Motor Vehicles Registration: Estimated Average Age: by Type and State (Discontinued).

Graph and download economic data for Infra-Annual Labor Statistics: Working-Age Population Male: From 25 to 54 Years for Australia (LFWA25MAAUM647S) from Feb 1978 to Sep 2025 about 25 to 54 years, working-age, Australia, males, and population.

The estimated resident population (ERP) is the official measure of the Australian population. This dataset contains annual ERP by country of birth, age and sex at the Australia level. At the state/territory level it is available for Census years only.

Since 1960, age distribution across Australia's population has observed a fairly significant change. The share of the population below 14 years has dropped from over 30 percent to less than 20 percent; while the share aged over 65 has almost doubled. However, Australia's under-14 population is still larger than its over-65 population. The bulk of the population is aged between 15 and 64 years, and this group had its largest share of the population in 2009 when it made up over two-thirds of the entire population. This gradual change has come as a result of decreasing fertility and higher life expectancy, causing the average age of the population to rise.

Actual value and historical data chart for Australia Uis Mean Years Of Schooling Of The Population Age 25 Total

UIS: Mean years of schooling (ISCED 1 or higher), population 25+ years, male in Australia was reported at 12.43 Years in 2018, according to the World Bank collection of development indicators, compiled from officially recognized sources. Australia - Mean years of schooling of the population age 25+. Male - actual values, historical data, forecasts and projections were sourced from the World Bank on November of 2025.

Motor Vehicles Registration: Estimated Average Age: Light Commercial Vehicles: Australia data was reported at 10.800 Year in 2021. This records an increase from the previous number of 10.617 Year for 2020. Motor Vehicles Registration: Estimated Average Age: Light Commercial Vehicles: Australia data is updated yearly, averaging 10.522 Year from Jan 2001 (Median) to 2021, with 21 observations. The data reached an all-time high of 11.500 Year in 2002 and a record low of 10.400 Year in 2015. Motor Vehicles Registration: Estimated Average Age: Light Commercial Vehicles: Australia data remains active status in CEIC and is reported by Australian Bureau of Statistics. The data is categorized under Global Database’s Australia – Table AU.TA004: Motor Vehicles Registration: Estimated Average Age: by Type and State (Discontinued).

This horizontal bar chart displays median age (year) by currency using the aggregation average, weighted by population in Australia and New Zealand. The data is filtered where the date is 2021. The data is about countries per year.

This bar chart displays median age (year) by demonym using the aggregation average, weighted by population in Australia and New Zealand. The data is filtered where the date is 2021. The data is about countries per year.

This dataset presents data on the population of a region by age group for the Statistical Area Level 4 (SA4) regions as of December 2021. The boundaries for this dataset follow the 2016 edition of the Australian Statistical Geography Standard (ASGS).

The Australian Department of Education, Skills and Employment publishes a range of labour market data on its Labour Market Information Portal. The data provided includes unemployment rate, employment rate, participation rate, youth unemployment rate, unemployment duration, population by age group and employment by industry and occupation.

AURIN has spatially enabled the original data. Data Source: ABS Labour Force Survey, 12 month average, December 2021. The ABS advises that analysis of regional labour force estimates should typically be based on annual averages, which are important for understanding the state of the labour market and providing medium and long-term signals. The application of annual averages, however, is unlikely to accurately or quickly detect turning points in the regional data during periods of significant change (such as during the onset of the COVID-19 pandemic). Original data at the ABS Statistical Area 4 (SA4) level can be found in Table 16. The region named "Western Australia - Outback (North and South)" in the original data has been omitted as it did not match a region within the SA4 2016 ASGS.

This scatter chart displays forest area (km²) against median age (year) in Australia. The data is filtered where the date is 2021. The data is about countries per year.

In 2022, the average male age at marriage was 29.8 years in Australia. The average at separation from their married partner was 42.6 years, and for divorce, the average age was 46.7 years.