Koror is the state comprising the main commercial centre of the Republic of Palau. It consists of several islands, the most prominent being Koror Island (also Oreor Island).
The state of Koror (population 14,000 as of 2004) contains about 70% of the population of the country. The nation's former capital and largest town, also called Koror, is located here. The town has a population of 11,200. On 7 October 2006, Ngerulmud replaced Koror as Palau's capital city.