As of 2021, Millennials and Baby Boomers made up an equal share of the Australian population at around 21.5 percent each, making them the largest generational groups at the time. Those aged 75 years and over made up the smallest portion of the population, followed by Gen Alpha, or those aged 0 to 9 years at the time.
Distribution of Australian population in Australia as of 2021, by generation
Characteristic
Share of population
Gen Alpha (0-9 years)
12%
Gen Z (10-24 years)
18.2%
Millennials (25-39 years)
21.5%
Gen X (40-54 years)
19.3%
Baby Boomers (55-74 years)
21.5%
Interwar (75 years and over)
7.5%
Created with Highcharts 7.2.2Share of population12%12%18.2%18.2%21.5%21.5%19.3%19.3%21.5%21.5%7.5%7.5%Gen Alpha (0-9 years)Gen Z (10-24 years)Millennials (25-39 years)Gen X (40-54 years)Baby Boomers (55-74 years)Interwar (75 years and over)
0%5%10%15%20%25%
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Australian Bureau of Statistics. (June 28, 2022). Distribution of Australian population in Australia as of 2021, by generation [Graph]. In Statista. Retrieved February 24, 2025, from https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/
Australian Bureau of Statistics. "Distribution of Australian population in Australia as of 2021, by generation." Chart. June 28, 2022. Statista. Accessed February 24, 2025. https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/
Australian Bureau of Statistics. (2022). Distribution of Australian population in Australia as of 2021, by generation. Statista. Statista Inc.. Accessed: February 24, 2025. https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/
Australian Bureau of Statistics. "Distribution of Australian Population in Australia as of 2021, by Generation." Statista, Statista Inc., 28 Jun 2022, https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/
Australian Bureau of Statistics, Distribution of Australian population in Australia as of 2021, by generation Statista, https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/ (last visited February 24, 2025)
Distribution of Australian population in Australia as of 2021, by generation [Graph], Australian Bureau of Statistics, June 28, 2022. [Online]. Available: https://www.statista.com/statistics/1359270/australia-distribution-of-population-by-generation/
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