Chuuk State is one of the four states of the Federated States of Micronesia (FSM). The other states are Kosrae State, Pohnpei State, and Yap State. It consists of several island groups: Namoneas, Faichuuk, the Hall Islands, Namonuito Atoll, Pattiw, and the Mortlock Islands. Chuuk is by far the FSM's most populous state, with 50,000 inhabitants on 120 square kilometers. Chuuk Lagoon is where most people live. Weno island, in the lagoon, is Chuuk's state capital and the country's biggest city. It may hold a referendum on independence in the near future, although this referendum has been repeatedly postponed.

The Federated States of Micronesia, or simply Micronesia, is an island country in Micronesia, a subregion of Oceania. The federation consists of four states—from west to east, Yap, Chuuk, Pohnpei and Kosrae—that are spread across the western Pacific. Together, the states comprise around 607 islands that cover a longitudinal distance of almost 2,700 km (1,700 mi) just north of the equator. They lie northeast of Indonesia and Papua New Guinea, south of Guam and the Marianas, west of Nauru and the Marshall Islands, east of Palau and the Philippines, about 2,900 km (1,800 mi) north of eastern Australia, 3,400 km (2,100 mi) southeast of Japan, and some 4,000 km (2,485 mi) southwest of the main islands of the Hawaiian Islands.