Ust-Aldansky District

Ust-Aldansky District (Russian: Усть-Алда́нский улу́с; Yakut: Уус-Алдан улууһа, Uus-Aldan uluuha, Yakut pronunciation: [uːs-aldan uluːha]) is an administrative and municipal district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia. It is located in the center of the republic and borders with Kobyaysky District in the north, Tomponsky District in the northeast, Tattinsky District in the east, Churapchinsky District in the southeast, Megino-Kangalassky District in the south, and with Namsky District in the west. The area of the district is 18,300 square kilometers (7,100 sq mi). Its administrative center is the rural locality (a selo) of Borogontsy. Population: 22,155 (2010 census); 22,372 (2002 Census); 21,389 (1989 Soviet census). The population of Borogontsy accounts for 23.6% of the district's total population.