Postage stamps and postal history of Tuvalu Postage stamps and postal history of Tuvalu Tuvalu is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. It comprises four reef islands and five true atolls. Its population of 10,472 makes it the third-least populous sovereign state in the world. In terms of physical land size, at just Tuvalu is the fourth smallest country in the world. Tuvalu was formerly the Ellice Islands, part of the Gilbert and Ellice Islands which split into Kiribati and Tuvalu upon gaining independence from the United Kingdom in 1978
Pacific Ocean most of the islands in the world. There are about 25,000 islands in the Pacific Ocean. The islands entirely within the Pacific Ocean can be divided into three main groups known as Micronesia, Melanesia and Polynesia. Micronesia, which lies north of the equator and west of the International Date Line, includes the Mariana Islands in the northwest, the Caroline Islands in the center, the Marshall Islands to the west and the islands of Kiribati in the southeast. Melanesia, to the southwest, includes New Guinea, the world's second largest island after Greenland and by far the largest of the Pacific islands.