Melekeok is a state of the Republic of Palau located on the central east coast of Babeldaob Island. The seat of government of the country, Ngerulmud, is located in the state. The state consists of long beaches, hills, steep ridges, rivers, and the largest and only natural freshwater lake in Palau and Micronesia, Lake Ngardok. Its population was 318 in 2020.

Ngerulmud is the capital city of Palau, a small island nation located in the western Pacific Ocean. Palau is known for its stunning coral reefs, marine biodiversity, and unique culture. Ngerulmud is one of the smallest capital cities in the world in terms of population and size. At the 2020 national census, the state of Melekeok in which Ngerulmud is located had a population of 318 people,