Longyearbyen is the world's northernmost settlement with a population greater than 1,000, and the capital and the largest settled area of Svalbard. It stretches along the foot of the left bank of the Longyear Valley and on the shore of Adventfjorden, the short estuary leading into Isfjorden on the west coast of Spitsbergen, the island's broadest inlet. As of 2002, Longyearbyen Community Council is an official Norwegian municipality. It is the seat of the Governor of Svalbard. As of 2024, the town's mayor is Leif Terje Aunevik.