Pohnpei "upon (pohn) a stone altar (pei)" (formerly known as Ponape) is the name of an island of the Senyavin Islands which are part of the larger Caroline Islands group. It belongs to Pohnpei State, one of the four states in the Federated States of Micronesia (FSM). Major population centers on Pohnpei include Palikir, the FSM's capital, and Kolonia, the capital of Pohnpei State. Pohnpei Island is the largest (334 km²), highest (almost 800m), most populous (34,000 people), and most developed single island in the FSM. The islanders of Pohnpei have a reputation as being the most welcoming of outsiders among residents of the island group.