Map of Melanesia: All 4 Countries and Capitals
Melanesia is a subregion of Oceania in the southwestern Pacific Ocean, known for its remarkable cultural and linguistic diversity. The region includes some of the largest and most mountainous islands in the Pacific, featuring active volcanoes, dense rainforests, and extensive coral reef systems. Below the interactive map you will find a complete list of all 4 countries with their capitals, plus study cards to help you learn each one.
Hover a country to see its name. Click to jump to its study card.
The 4 Countries of Melanesia and Their Capitals
Complete list of all countries in Melanesia with capital, population and area. Click a country to jump to its study card with map and facts.
| Country | Capital | Population | Area |
|---|---|---|---|
 Fiji | Suva | 0.94M | 18,274 km² |
 Papua New Guinea | Port Moresby | 10.3M | 462,840 km² |
 Solomon Islands | Honiara | 0.74M | 28,896 km² |
 Vanuatu | Port Vila | 0.33M | 12,189 km² |
Study the Countries
Fiji
Area: 18,274 km² · Coastline: 1,129 km
Fiji is an archipelago of more than 330 islands in the South Pacific, located east of Vanuatu and west of Tonga. The two largest islands, Viti Levu and Vanua Levu, are volcanic in origin with mountainous interiors. The islands are surrounded by coral reefs and warm tropical waters.
Shape: A scattered cluster of islands with two large main islands oriented roughly northwest to southeast, surrounded by hundreds of smaller islands and atolls.
Fun Facts
- Fiji sits near the International Date Line and is among the first places in the world to see each new sunrise.
- The country has over 330 islands, but only about one-third are permanently inhabited.
- Fiji's Great Astrolabe Reef is one of the largest barrier reefs in the world.
Papua New Guinea
Area: 462,840 km² · Coastline: 5,152 km
Papua New Guinea occupies the eastern half of the island of New Guinea, the world's second-largest island, plus numerous offshore islands including New Britain and Bougainville. The terrain is extremely rugged with a central highland spine exceeding 4,500 meters, active volcanoes, and vast lowland rainforests.
Shape: The eastern half of a large bird-shaped island, with a distinctive long southeastern peninsula (the Papuan Peninsula) and large offshore islands to the northeast.
Fun Facts
- Papua New Guinea has over 840 living languages, making it the most linguistically diverse country on Earth.
- The country's highland valleys were unknown to the outside world until the 1930s, when they were found to contain over a million people.
- Papua New Guinea contains the world's third-largest tropical rainforest after the Amazon and Congo basins.
Solomon Islands
Area: 28,896 km² · Coastline: 5,313 km
The Solomon Islands is a scattered archipelago of nearly 1,000 islands in the southwestern Pacific, lying east of Papua New Guinea and northwest of Vanuatu. The six major islands are large and mountainous with volcanic origins, covered in dense tropical rainforest. The country sits within the Coral Triangle, the most biodiverse marine region on Earth.
Shape: A double chain of islands stretching about 1,500 km from northwest to southeast, with six large rugged islands forming the core.
Fun Facts
- The Solomon Islands were a major battleground in World War II, with the Battle of Guadalcanal being a turning point in the Pacific theater.
- Marovo Lagoon in the Western Province is the world's largest saltwater lagoon.
- Some islands in the Solomon Islands have populations with naturally blond hair due to a unique genetic variant.
Vanuatu
Area: 12,189 km² · Coastline: 2,528 km
Vanuatu is a Y-shaped archipelago of 83 islands stretching 1,300 km in the southwestern Pacific, located between New Caledonia to the south and the Solomon Islands to the north. The islands are volcanic with rugged mountainous terrain, active volcanoes, and lush tropical vegetation. Nine of the islands have active volcanoes.
Shape: A Y-shaped chain of elongated volcanic islands running north to south, splitting into two branches in the south.
Fun Facts
- Mount Yasur on Tanna Island has been erupting almost continuously for over 800 years, making it one of the most accessible active volcanoes in the world.
- Vanuatu has the highest density of languages per capita in the world, with over 100 languages spoken by just 300,000 people.
- The country invented bungee jumping - the tradition of land diving (naghol) on Pentecost Island inspired the modern sport.
Quick Reference
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About Melanesia Geography
Melanesia is a subregion of Oceania extending from the western Pacific to the Arafura Sea, north and northeast of Australia. The name means "Black Islands" and the region encompasses the largest and most mountainous island groups in the Pacific, including the world's second-largest island, New Guinea.
Frequently Asked Questions
What countries are in Melanesia?
Melanesia includes four sovereign nations: Fiji, Papua New Guinea, Solomon Islands, and Vanuatu. The region also includes the French territory of New Caledonia and the Indonesian province of West Papua.
What is the largest country in Melanesia?
Papua New Guinea is the largest Melanesian country at 462,840 km². It occupies the eastern half of New Guinea, the world's second-largest island, and is home to over 9 million people.
Why is the region called Melanesia?
The name Melanesia comes from the Greek words "melas" (black) and "nesos" (island), meaning "Black Islands." It was coined by French explorer Jules Dumont d'Urville in 1832 to describe the dark-skinned peoples of the southwestern Pacific islands.
Which countries and capitals are in Melanesia?
The 4 countries of Melanesia and their capitals are: Fiji (Suva), Papua New Guinea (Port Moresby), Solomon Islands (Honiara), Vanuatu (Port Vila).
Is New Caledonia part of Melanesia?
Geographically yes, but New Caledonia is a French overseas territory rather than an independent country, so it is not listed among the sovereign states of Melanesia in this lesson.