The only metropolises of this continent are located in Australia, with the exception of Auckland (New Zealand), on the other hand only three countries have more than one million inhabitants and therefore there are also few cities.60% of the population of Oceania lives in Australia and this is reflected in the ranking of the most populous cities, with six of the top ten urban centers found in this nation.
The first capital is only in 8th place, as both major Australian cities and New Zealand's only metropolis do not have this status.
| City | Urban aggl. | Population | Urban area | Country | Other cities in urban area |
| Melbourne | 4,721,000 | 4,504,000 | 2,704 Kmē | Australia | |
| Sydney | 4,713,000 | 4,713,000 | 2,178 Kmē | Australia | |
| Brisbane | 2,897,000 | 2,276,000 | 2,652 Kmē | Australia | Gold Coast |
| Perth | 2,040,000 | 2,040,000 | 1,722 Kmē | Australia | |
| Auckland | 1,463,000 | 1,463,000 | 541 Kmē | New Zealand | |
| Adelaide | 1,244,000 | 1,244,000 | 837 Kmē | Australia | |
| Honolulu | 845,000 | 351,000 | 440 Kmē | Hawaii (United States) | |
| Canberra | 479,000 | 479,000 | 402 Kmē | Australia | |
| Wellington | 433,000 | 216,000 | 194 Kmē | New Zealand | Lower Hutt |
| Port Moresby | 383,000 | 383,000 | 98 Kmē | Papua New Guinea | |
| Christchurch | 381,000 | 381,000 | 202 Kmē | New Zealand | |
| Newcastle | 351,000 | 351,000 | 296 Kmē | Australia | |
| Central Coast | 326,000 | 326,000 | 334 Kmē | Australia | |
| Wollongong | 280,000 | 280,000 | 237 Kmē | Australia | |
| Sunshine Coast | 275,000 | 275,000 | 321 Kmē | Australia | |
| Hobart | 198,000 | 198,000 | 248 Kmē | Australia | |
| Suva | 186,000 | 94,000 | 40 Kmē | Fiji | Nasinu |
| Nouméa | 182,000 | 94,300 | 46 Kmē | New Caledonia (France) | Dumbéa |
| Geelong | 180,000 | 180,000 | 169 Kmē | Australia | |
| Hamilton | 179,000 | 179,000 | 119 Kmē | New Zealand | |
| Townsville | 173,000 | 173,000 | 261 Kmē | Australia | |
| Cairns | 155,000 | 155,000 | 254 Kmē | Australia | |
| Tauranga | 155,000 | 155,000 | 168 Kmē | New Zealand |
* data on urban agglomerations updated to 2022 (estimates), those on population according to official data or more recent estimates of the national statistical services, when different from urban agglomerations.