Yakutsk (Russian: Якутск; IPA: [jɪˈkutsk]; Sakha: Дьокуускай, Jokūskaĭ, pronounced [ɟokuːskaj]) is the capital city of the Sakha Republic, Russia, located about 450 kilometers (280 mi) south of the Arctic Circle. Population: 269,601 (2010 Census);210,642 (2002 Census); 186,626 (1989 Census).
Yakutsk is a major port on the Lena River. It is served by the Yakutsk Airport as well as the smaller Magan Airport. It is a major supplier of diamonds.