Database of Island in Thailand

There are over 700 islands found on the navigational map of Thai waters which created by Hydrographic Department of Royal Thai Navy. According to the database from the Department of Marine and Coastal Resources, it was found that 936 islands  are distributed both in the Gulf of Thailand and Andaman Sea. There are 374 and 562 islands along the coast in the Gulf of Thailand and Andaman Sea, respectively, with a total length of islands of 3,724.32 kilometers while the total area of the islands is 2,686.84 square kilometers. The Phang Nga Province has the most islands (155 islands), followed by Krabi Province (154 islands), and Surat Thani Province (108 islands). In consideration of area of the island, there are six islands in which each has the area of more than 100 square kilometers. Ko Phuket is the largest island with the area of 514.675 square kilometers followed by Ko Samui (236.07 square kilometers) Ko Chang (212.40 square kilometers), Ko Tarutao (150.84 square kilometers), Ko Pha Ngan (122.01 square kilometers), and Koh Kood (111.89 square kilometers). Over fifty percents of all islands in Thailand are in the national park boundary while, many islands are also administered by the local administrations. Besides, some islands are governed by Royal Thai Navy in purposes of national security. These islands are used for military affairs such as naval stations and marinas, lighthouses, navigational assistance etc. Furthermore, hydrological monitoring stations and marine warning stations are also established on the island. (Database of Marine and Coastal Resources, 2009)