Chuuk Lagoon, also known as Truk Lagoon, is a sheltered body of water in the central Pacific. About 1800 km north-east of New Guinea, it is located mid-ocean at 7 degrees North latitude, and is part of Chuuk State within the Federated States of Micronesia. The atoll consists of a protective reef, 225 kilometres (140 mi) around, enclosing a natural harbour 79 by 50 kilometres (49 by 30 mi), with an area of 2,130 square kilometres (820 sq mi). It has a land area of 93.07 square kilometres (35.93 sq mi), with a population of 36,158 people and a maximal height of 443 m. Weno city on Weno island functions as the atoll's capital and also as the state capital and is the largest city in the FSM with its 12,000 people.