Tuvalu (/tuːˈvɑːluː/ too-VAH-loo or /ˈtuːvəluː/ TOO-və-loo), formerly known as the Ellice Islands, is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. It comprises three reef islands and six true atolls spread out between the latitude of 5° to 10° south and longitude of 176° to 180°, west of the International Date Line. Tuvalu's Exclusive Economic Zone (EEZ) covers an oceanic area of approximately 900,000 km2. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. Its population of 10,837 makes it the third-least populous sovereign state in the world, with only the Vatican City and Nauru having fewer inhabitants. In terms of physical land size, at just 26 square kilometres (10 sq mi) Tuvalu is the fourth smallest country in the world, larger only than the Vatican City at 0.44 km2 (0.17 sq mi), Monaco at 1.98 km2 (0.76 sq mi), and Nauru at 21 km2 (8.1 sq mi).