Nukuʻalofa, population 22,400 (1996), is the capital, chief port and largest city of Tonga. The city is located on the coast of Tongatapu island, located at 21°8′S 175°12′W / -21.133, -175.2Coordinates: 21°8′S 175°12′W / -21.133, -175.2 (-21.13333, -175.2).
Nukuʻalofa is the commercial, transport and social centre of Tonga. It comprises about 35% of the kingdom's population. The Tonga Royal Palace is located there.