Which has higher median age, Australia or New Zealand?

Australia, at 37.75 years against 37.28 years in New Zealand as of 2023.

What is the difference in median age between Australia and New Zealand?

0.47 years, with Australia ahead.

How many years of comparable data are there for Australia and New Zealand?

74 years are reported by both, from 1950 to 2023.

Where does this data come from?

UN, World Population Prospects (2024) – processed by Our World in Data, published as Median age. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Australia vs New Zealand: Median age

Australia

37.75 years

in 2023

New Zealand

37.28 years

in 2023

Australia rank

78th

New Zealand rank

81st

Median age over time

Australia
New Zealand

How they compare

Australia currently reports 37.75 years against 37.28 years in New Zealand, a difference of 0.47 years.

The two have swapped places 2 times across 74 shared years of data; in 1950 it was Australia ahead.

Australia ranks 78th and New Zealand ranks 81st of 236 countries.

Across the 8 decades both report, Australia averaged higher in 7 and New Zealand in 1.

Head to head by decade

Decade	Australia	New Zealand	Difference	Ahead
1950s	29.13 years	27.75 years	1.38 years	Australia
1960s	27.5 years	25.26 years	2.24 years	Australia
1970s	27.13 years	25.34 years	1.79 years	Australia
1980s	29.6 years	28.29 years	1.31 years	Australia
1990s	32.53 years	31.47 years	1.06 years	Australia
2000s	35.29 years	34.47 years	0.826 years	Australia
2010s	36.26 years	36.27 years	0.007 years	New Zealand
2020s	37.35 years	36.9 years	0.459 years	Australia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher median age, Australia or New Zealand?: Australia, at 37.75 years against 37.28 years in New Zealand as of 2023.
What is the difference in median age between Australia and New Zealand?: 0.47 years, with Australia ahead.
How many years of comparable data are there for Australia and New Zealand?: 74 years are reported by both, from 1950 to 2023.
How do Australia and New Zealand rank globally for median age?: Australia ranks 78th and New Zealand ranks 81st of 236 countries.
Where does this data come from?: UN, World Population Prospects (2024) – processed by Our World in Data, published as Median age. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator: Median age
Unit: years
Source: UN, World Population Prospects (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 236 places, 17,464 data points, 1950–2023
Last refreshed: 06 August 2026

The age that divides the population into two halves of equal size — half are younger and half are older.