Indonesia: As the largest island country and the world's fourth most populous nation, Indonesia consists of more than 17,000 islands. It covers a total land area of approximately 1,904,569 square kilometers.
Madagascar: Located off the eastern coast of Africa, Madagascar is the world's second-largest island country, with a land area of about 587,041 square kilometers.
Papua New Guinea: Situated in the southwestern Pacific Ocean, Papua New Guinea encompasses the eastern half of the island of New Guinea and numerous smaller islands. Its total land area is around 462,840 square kilometers.
Japan: Although Japan is known for its main islands, it is an archipelago consisting of 6,852 islands. The country's land area spans approximately 377,972 square kilometers.
Philippines: The Philippines is an archipelago comprising 7,641 islands in Southeast Asia. It has a total land area of about 300,000 square kilometers.
New Zealand: New Zealand consists of two main islands, the North Island and the South Island, along with numerous smaller islands. Its land area is approximately 267,710 square kilometers.
United Kingdom: The United Kingdom is an island country located off the northwestern coast of mainland Europe. It includes the island of Great Britain, the northeastern part of the island of Ireland, and various smaller islands, with a total land area of about 243,610 square kilometers.
Cuba: Located in the Caribbean, Cuba is the largest island in the Caribbean Sea and has a land area of around 109,884 square kilometers.
Iceland: Situated in the North Atlantic Ocean, Iceland is known for its volcanic landscapes and geothermal activity. It has a total land area of approximately 103,000 square kilometers.
Sri Lanka: Sri Lanka is an island nation in South Asia located in the Indian Ocean. It has a land area of about 65,610 square kilometers.