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, Ngerulmud replaced Koror as Palau's capital city.
Much of Palau's economy comes from tourism. The Rock Islands of Palau are all located in the state. Scuba diving shops and facilities are located all over Koror. Accommodation like hotels, bars, restaurants, cafes, and resorts are all available. Dolphins Pacific, the World's largest dolphin research facility, is open for tourists who are interested in swimming and interacting with trained dolphins. Most tourists to Palau stay in Koror, which is the centre for Palau's resort services and house modern conveniences. Koror has businesses that cater to speakers of many languages.