Countries in Oceania by human development index

The United Nations Development Programme’s index of a long and healthy life, education and a decent standard of living, from 0 to 1. 13 countries in Oceania, highest first. UNDP, 2023

Map: Human Development Index — Oceania
Highest
0.958
Australia
Median country
0.708
half above, half below
Lowest
0.576
Papua New Guinea
Countries in Oceania by human development index, UNDP, 2023
#CountryHDIRegion
1Australia0.958Australia and New Zealand
2New Zealand0.938Australia and New Zealand
3Palau0.786Micronesia
4Tonga0.769Polynesia
5Marshall Islands0.733Micronesia
6Fiji0.731Melanesia
7Samoa0.708Polynesia
8Nauru0.703Micronesia
9Kiribati0.644Micronesia
10Vanuatu0.621Melanesia
11Micronesia0.615Micronesia
12Solomon Islands0.584Melanesia
13Papua New Guinea0.576Melanesia

Questions

Which country in Oceania has the highest human development?
Australia has the highest human development in Oceania: an index of 0.958 (2023). Next come New Zealand (an index of 0.938) and Palau (an index of 0.786).
Which country in Oceania has the lowest human development?
Papua New Guinea, with an index of 0.576 (2023).
What is the typical human development index of a country in Oceania?
The median of the 13 countries in Oceania is an index of 0.708: half are above it, half below. The median, not the average, because a few countries at the top would drag an average far above almost everyone.
Where do the figures come from?
The United Nations Development Programme’s index of a long and healthy life, education and a decent standard of living, from 0 to 1. Source: UNDP, 2023. Only independent states are ranked; territories are listed separately. A country’s continent follows Natural Earth; the handful of island states it files under the open ocean are placed by their UN subregion.

Source: UNDP. Countries sharing a value share a rank. All sources.