Largest/Smallest
Largest Countries in Oceania 2025
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5 Largest Countries in the World
Country↑ | Area (km²) | Area (mi²) | % of Earth's Area | Subregion | |
|---|---|---|---|---|---|
 | American Samoa | 199 | 77 | < 0.1% | Polynesia |
 | Australia | 7.7M | 3M | 5.16% | Australia and New Zealand |
 | Cook Islands | 240 | 93 | < 0.1% | Polynesia |
 | Fiji | 18.3K | 7.1K | < 0.1% | Melanesia |
 | French Polynesia | 4.2K | 1.6K | < 0.1% | Polynesia |
 | Guam | 549 | 212 | < 0.1% | Micronesia |
 | Kiribati | 811 | 313 | < 0.1% | Micronesia |
 | Marshall Islands | 181 | 70 | < 0.1% | Micronesia |
 | Micronesia | 702 | 271 | < 0.1% | Micronesia |
 | Nauru | 21 | 8 | < 0.1% | Micronesia |
 | New Caledonia | 18.6K | 7.2K | < 0.1% | Melanesia |
 | New Zealand | 270.5K | 104.4K | 0.18% | Australia and New Zealand |
 | Niue | 261 | 101 | < 0.1% | Polynesia |
 | Northern Mariana Islands | 464 | 179 | < 0.1% | Micronesia |
 | Palau | 459 | 177 | < 0.1% | Micronesia |
 | Papua New Guinea | 462.8K | 178.7K | 0.31% | Melanesia |
 | Samoa | 2.8K | 1.1K | < 0.1% | Polynesia |
 | Solomon Islands | 28.9K | 11.2K | < 0.1% | Melanesia |
 | Tokelau | 12 | 5 | < 0.1% | Polynesia |
 | Tonga | 747 | 288 | < 0.1% | Polynesia |
 | Tuvalu | 26 | 10 | < 0.1% | Polynesia |
 | Vanuatu | 12.2K | 4.7K | < 0.1% | Melanesia |
 | Wallis and Futuna | 274 | 106 | < 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.
