Tuvalu (/tuːˈvɑːluː/ too-VAH-loo; formerly known as the Ellice Islands) is an island country in the Polynesian subregion of Oceania, surrounded by the Pacific Ocean and situated about midway between Hawaii and Australia. The country lies east-northeast of the Santa Cruz Islands (which belong to the Solomon Islands), northeast of Vanuatu, southeast of Nauru, south of Kiribati, west of Tokelau, northwest of Samoa and Wallis and Futuna, and north of Fiji. It is composed of three reef islands and six atolls spread out between the latitude of 5° to 10° south and longitude of 176° to 180°, west of the International Date Line. Tuvalu has a population of 10,507 (2017 Census). The total land area of the islands of Tuvalu is 26 square kilometres (10 sq mi).
Funafuti is an atoll and the capital of the island nation of Tuvalu. It has a population of 6,320 people (2017 census), making it the country’s most populated atoll, with 60.15 percent of Tuvalu’s population. It is a narrow sweep of land between 20 and 400 metres (66 and 1,312 feet) wide, encircling a large lagoon (Te Namo) 18 km (11 miles) long and 14 km (9 miles) wide. The average depth in the Funafuti lagoon is about 20 fathoms (36.5 metres or 120 feet). With a surface of 275 square kilometres (106.2 sq mi), it is by far the largest lagoon in Tuvalu. The land area of the 33 islets aggregates to 2.4 square kilometres (0.9 sq mi), less than one percent of the total area of the atoll. Cargo ships can enter Funafuti’s lagoon and dock at the port facilities on Fongafale.
The capital of Tuvalu is sometimes given as Fongafale or Vaiaku, but the entire atoll of Funafuti is officially the capital, since it comprises a single local government.
Vaiaku is a village located on the southern coast of the island of Fongafale in the atoll of Funafuti in Tuvalu.
There are 516 inhabitants in Vaiaku, according to the census of 2002, out of 4,492 for the whole atoll of Funafuti, which is the official capital of Tuvalu.
All the administrative buildings, including the National Bank of Tuvalu, and the only hotel of Tuvalu, Vaiaku Langi Hotel, are located in Vaiaku. It also has Teone Church, which is the only church of the Latin Catholic Mission Sui Iuris of Funafuti.