Largest Countries in Oceania 2025
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Country | Area (km²)↓ | Area (mi²) | % of Earth's Area | Subregion | |
|---|---|---|---|---|---|
 | Australia | 7.7M | 5.16% | Australia and New Zealand | |
 | Papua New Guinea | 462.8K | 0.31% | Melanesia | |
 | New Zealand | 270.5K | 0.18% | Australia and New Zealand | |
 | Solomon Islands | 28.9K | < 0.1% | Melanesia | |
 | New Caledonia | 18.6K | < 0.1% | Melanesia | |
 | Fiji | 18.3K | < 0.1% | Melanesia | |
 | Vanuatu | 12.2K | < 0.1% | Melanesia | |
 | French Polynesia | 4.2K | < 0.1% | Polynesia | |
 | Samoa | 2.8K | < 0.1% | Polynesia | |
 | Kiribati | 811 | < 0.1% | Micronesia | |
 | Tonga | 747 | < 0.1% | Polynesia | |
 | Micronesia | 702 | < 0.1% | Micronesia | |
 | Guam | 549 | < 0.1% | Micronesia | |
 | Northern Mariana Islands | 464 | < 0.1% | Micronesia | |
 | Palau | 459 | < 0.1% | Micronesia | |
 | Wallis and Futuna | 274 | < 0.1% | Polynesia | |
 | Niue | 261 | < 0.1% | Polynesia | |
 | Cook Islands | 240 | < 0.1% | Polynesia | |
 | American Samoa | 199 | < 0.1% | Polynesia | |
 | Marshall Islands | 181 | < 0.1% | Micronesia | |
 | Tuvalu | 26 | < 0.1% | Polynesia | |
 | Nauru | 21 | < 0.1% | Micronesia | |
 | Tokelau | 12 | < 0.1% | Polynesia |
What are the largest countries in Oceania? Oceania is 8,525,989 km² (3,291,902 mi²). The largest country in Oceania is Australia, which spans over a total of 7,692,024 km² (2,969,121 mi²) and is also the sixth-largest country in the world. Australia has a population of over 25.1 million people. The smallest country in Oceania is Tokelau, located in Polynesia. It spans over just 12 km² (5 mi²). Tokelau has a population of approximately 1,500 people.
