New Zealand vs Australia: population pyramids in 2009
New ZealandAustralia
Each bar is the share of the total population at that single year of age (men left, women right), so countries of different sizes can be compared.
New Zealand and Australia compared
In 2009, New Zealand has a population of 4.3 million and Australia 21.6 million; Australia is about 5.0 times the size of New Zealand.
The share aged 65 and over is 12.6% in New Zealand and 13.2% in Australia, 0.6 points higher in Australia. The median age is 36.6 years in New Zealand and 36.9 years in Australia.
The total fertility rate is 2.13 in New Zealand and 1.97 in Australia, so only Australia is below the replacement level of about 2.1. Life expectancy at birth is 80.5 years in New Zealand and 81.7 years in Australia.
By 2050, the population of New Zealand is projected to grow by 34.2% and that of Australia to grow by 50.0% compared with 2009.
GDP per person is $50K in New Zealand (2025) and $65K in Australia (2025).
Key figures (2009)
| New Zealand | Australia | |
|---|---|---|
| Population | 4.3 million | 21.6 million |
| Aged 0–14 | 21.0% | 19.2% |
| Aged 15–64 | 66.4% | 67.5% |
| Aged 65+ | 12.6% | 13.2% |
| Median age | 36.6 yrs | 36.9 yrs |
| Old-age dependency | 19.1 | 19.6 |
| Total fertility rate | 2.13 | 1.97 |
| Life expectancy | 80.5 yrs | 81.7 yrs |
| Population growth | +1.06% | +1.80% |
| Net migration (per year) | +12,700 | +235,628 |
| GDP | $264B (2025) | $1.8T (2025) |
| GDP per person | $50K (2025) | $65K (2025) |
| Unemployment | 5.1% (2025) | 4.1% (2025) |
Economic figures are the latest year published for each country.