Geography

Island Nations of the World Quiz

Tropical paradises and remote outposts — how many island nations can you identify?

Island Nations of the World Quiz: Test Your Knowledge

There are roughly 47 island nations on Earth — from Indonesia's 17,000+ islands to Nauru's single 21 km² atoll.

How It Works

Each round presents 10 randomized multiple-choice questions drawn from a pool of 50, so every playthrough is different. You get instant feedback with explanations after each answer, plus a shareable score at the end.

What You'll Learn

Explore the world's 47 island nations from massive Indonesia to tiny Nauru, the Maldives' vulnerability to sea level rise, Singapore's remarkable density and wealth, Japan as the most populous island nation, Caribbean island diversity, Madagascar's unique endemic species, and Pacific islands' climate challenges.

Frequently Asked Questions

What is the largest island nation in the world?

Indonesia is the largest island nation by both area (1.9 million km²) and population (over 275 million people). It consists of more than 17,000 islands stretching across 5,120 km of ocean between the Indian and Pacific Oceans.

Which island nations are most threatened by climate change?

Low-lying atoll nations like the Maldives, Tuvalu, Kiribati, and the Marshall Islands face the most severe threats from rising sea levels. The Maldives, with an average elevation of just 1.5 meters, could become uninhabitable within decades if current sea level trends continue.

How many island nations are there in the Pacific Ocean?

There are 14 independent Pacific Island nations: Fiji, Kiribati, Marshall Islands, Micronesia, Nauru, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu, and the larger nations of Australia and New Zealand (if counted). These are often grouped into Melanesia, Micronesia, and Polynesia.

Last updated: April 2026