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Oceania Countries and Regions

Oceania Countries and Regions

Officially, there are 14 United Nations recognized Oceania Countries and Regions. But there are some territories governed by countries like the USA, France and New Zealand.

Oceania Countries and Regions

Oceania Countries Map

Oceania Countries and their Capitals

Oceania Countries recognized by the United Nations are listed below.

Oceania Countries

Capital of Oceania Countries

Size of Oceania Countries

Population of Oceania Countries (2020)


 Papua New Guinea

 New Zealand


 Solomon Islands



 Guam (US)


 Federated States of Micronesia


Port Moresby




Port Vila





7,692,024 sq. Km

462,840 sq. Km

268,021 sq. Km

18,333 sq. Km

28,399 sq. Km

12,199 sq. Km

2,842 sq. Km

549 sq. Km

811 sq. Km

702 sq. Km












 American Samoa (US)

 Northern Mariana Islands (US)


Pago Pago


748 sq. Km

199 sq. Km

477 sq. Km




 Marshall Islands


 Cook Islands (NZ)

 Wallis and Futuna (France)



 Norfolk Island (Australia)

 Niue (NZ)

 Tokelau (NZ)

 Pitcairn Islands (UK)



Avarua District



Yaren District





182 sq. Km

459 sq. Km

237 sq. Km

143 sq. Km

26 sq. Km

21 sq. Km

35 sq. Km

262 sq. Km

10 sq. Km

47 sq. Km











Dependent Territories of Oceania Countries and Regions

New Caledonia, French Polynesia, Wallis & Futuna, Guam, Northern Marina Islands, American Samoa, Tokelau, Cook Island and Niue are the dependent territories of the Oceania Continents.

New Caledonia

New Caledonia is a unique region of France, located 1,210 km east of Australia, which is the southwestern region of the Pacific Ocean. The official language of this region is French.
New Caledonia is divided into three provinces North, South, and Loyalty Islands provinces which has a population of 285,498 as of May 2020. The total surface area of New Caledonia is about 18,576 sq. Km.

French Polynesia

French Polynesia or the Collectivity of French Polynesia is known as the sole overseas country of France, as it contains 118 geographically dispensed Islands in the south Pacific Ocean. Also, this region has coral atoll (ring-shaped coral reef) which extends for more than 2000 km.
The Society Islands Archipelago, the Tuamota Archipelago, the Gambier Islands, The Marquesas Islands, and the Austral Islands are the five groups of islands found in French Polynesia.
The total surface area of French Polynesia is about 4,167 sq. Km with a population of 280,908 as of May 2020.

Wallis & Futuna

Wallis and Futuna also are known as the Territory of the Wallis and Futuna Islands are a French island in the Southern region of Pacific Ocean. The surface area of Wallis & Futuna is 142.42 sq. Km and has a population of 11,239 as of 2020.
French is the official language of this region, but dominantly spoken language in these regions are Wallisian Language and the Futuna Language.


Gaum is an unincorporated territory of the United States in Micronesia which is in the western Pacific Ocean. Hagåtña, also known as Agana, is the capital village of Gaum, people living in this region are American Citizens by Birth and are called Guamanians.
The surface area of Gaum is 540 sq. Km with a population of 168,775 as of 2020.

Northern Marina Islands

The Northern Mariana Islands also know as the Commonwealth of the Northern Mariana Islands (CNMI) is a United States Territories in the Northwestern region of Pacific Ocean. Northern Marina Islands is a group of 14 Islands with a population of 57,513 as of 2020. It has a surface area of 477 sq. Km.

American Samoa

American Samoa is an unincorporated territory of the United States located in the southern region of the Pacific Ocean. American Samoa is a group of five volcanic islands, Tutuila, Aunu’u, Ta’u, Olosega, Ofu, and Nu’utele, and two coral atolls, Rose and Swains Islands.
People living in American Samoa can speak English and Samoan languages fluently. American Samoa has a population of 55,212 and surface area of 199 sq. Km.


Tokelau also is known as Union Island is a territory of New Zealand in the southern region of the Pacific Ocean. Atafu, Nukunonu and Fakaofo are the three coral atolls of Tokelau.
Tokelau has a total Surface area of 10 sq. Km and has a population of 1,357 as of 2020.

Cook Island

Cook Island is a self-governing island country in the southern region of the Pacific Ocean. But Cook Island is dependent on New Zealand for its defence and foreign affairs. Cook Island is a group of 15 Islands with the surface area of 240 sq. Km and has a population of 17,562 as of May 2020.


Niue is a self-governing island country in the southern region of the Pacific Ocean. Niue is the largest Coral Island in the world with the surface area of 261 sq. Km and has a population of 1,626 as of 2020

Oceania Countries and Regions

Conventionally there are four geographical regions or sub regions in the Oceania continent.

  • Australasia
  • Melanesia
  • Micronesia
  • Polynesia
Oceania Countries and Regions

Four Regions of Oceanic


Australasia contains countries like Australia, New Zealand and islands near these two countries in the Pacific Ocean. Meaning of the word Australasia is south of Asia. Some people consider New Guinea as a part of the Australasian region. Still, many people consider it to be a part of the Melanesian region.

Australia also known as the Commonwealth of Australia, is the sixth-largest country in the world. Also known as the smallest continent among the 7 continent of the world. Australia is the largest among all the countries of the oceanic with the surface area of 7,692,000 sq. Km. The population of Australia is 25,461,485 as of May 2020.

New Zealand is an Isolated landmass with two main Island North Island and South Island.
New Zealand falls in the southwestern Pacific Ocean. The population of New Zealand is 4,822,233 as of May 2020 and has a surface area of 268,021 sq. Km.

  1. Australia
  2. New Zealand


Melanesia is a sub-division of the Oceania Countries and Regions, which includes New Guinea Island, the Bismark Archipelago, Vanuatu, the Solomon Islands, Fiji, Papua New Guinea and New Caledonia. There are more than 1319 Languages spoken in Melanesia
The Islands in Melanesia belong to the Pacific Ring of Fire as they have a Volcanic Origin.
The population of Melanesia is about 11,122,996 as of 2020 and has a surface area of 450,000 sq. Km.

  1. Fiji
  2. New Caledonia
  3. Papua New Guinea
  4. Solomon Islands
  5. Vanuata


Micronesia is a sub-division of Oceania Countries and Regions, and it is located in the western Pacific Ocean. Micronesia consists of more than 1000 islands which include four main archipelagos and many small scattered Islands. There are five Independent Nations (Kiribati, Marshall Islands, Palau, Nauru, and the Federated States of Micronesia) and three US territories (Northern Mariana Islands, Guam and Wake Island) in Micronesia.
The population of Micronesia is 548,230 as of 2020, and the total size of this region is about 2700 sq. Km

  1. Kiribati
  2. Marshall Islands
  3. Palau
  4. Nauru
  5. The Federation State of Micronesia
  6. Gaum
  7. Northern Marina Islands
  8. Wake Island


Polynesia is a sub-division of Oceania Countries and Regions, and it is located to the east of Melanesia and Micronesia in the central Pacific Ocean. Polynesia includes the Cook Islands, Hawaii, the Marquesas Islands, Samoa, and French Polynesia with the total population of 683,248 as of 2020.

  1. American Samoa
  2. Cook Islands
  3. Easter Islands (Chile)
  4. French Polynesia
  5. Hawaii
  6. Niue
  7. Pitcairn
  8. Samoa
  9. Tonga
  10. Tuvalu

Facts of Oceania Countries and Regions

  • Australia is the largest island in the Oceania countries and regions which is spread in the Pacific Ocean.
  • There are 14 countries included in Oceania, and they are Australia, Micronesia, Fiji, Kiribati, Marshall Islands, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu and Vanuatu.
  • Oceania countries and regions covers a wide area from northern hemisphere to southern hemisphere
  • The highest mountain in Oceania is Mount Cook also known as Aoraki in New Zealand with the height of 12,316 ft high
  • There are many unique species of marsupials in Australia. Among them are koalas, possums, wombats and kangaroos.
  • Desert area in Australia is known as the ‘outback’ because it covers about two-thirds of its landmass.
  • Due to its isolation and its large size, Australia is also known as the ‘island continent.’
  • Australia has 750 species of reptiles, which is the highest in the world.
  • Koala, Kangaroo, Emu, Kookaburra, and platypus are some of the unique animals found in Australia.
  • The population of sheep in Australia is about 63.7 million that makes Australia the highest producer of wool.
  • The Great Barrier Reef is the world’s largest coral reef stretching for 2,600 Km.
  • Although Mesopotamia civilization is considered one of the oldest in the world’s history and started on the Australian continent.

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