Australia's diverse population
- Of the estimated resident population (ERP) of Australia at 30 June 2009 (22.0 million people), one quarter were born overseas (5.8 million people).
- At 30 June 2009, persons born in the United Kingdom continued to be the largest group of overseas-born residents, accounting for 5.4% of Australia's total population. Persons born in New Zealand accounted for 2.4% of Australia's total population, followed by persons born in China (1.6%), India (1.4%) and Italy (1.0%).
- Between 1999 and 2009, the number of Australia-born residents increased at an average rate of 1.0% per year, while the number of overseas-born residents increased at 2.9% per year.
- Of the top 50 countries of birth, the oldest median ages were recorded for Italy (67.0 years) and Greece (65.6 years). The lowest median ages were recorded for Nepal (25.2 years) and Sudan (25.9 years).
- Of the top 50 countries of birth, the highest sex ratio was recorded for Nepal residents (182 males per 100 females) followed by Bangladesh and Pakistan (both at 151). The lowest sex ratios were recorded by Thailand (54) and Japan (57).