Ust-Maysky District (Russian: Усть-Ма́йский улу́с; Yakut: Уус-Маайа улууһа, Uus-Maaya uluuha, IPA: [uːs-maːja 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 east of the republic and borders with Oymyakonsky District in the northeast, Khabarovsk Krai in the east and south, Aldansky District in the southwest, Amginsky District in the west, Churapchinsky and Tattinsky Districts in the northwest, and with Tomponsky District in the north. The area of the district is 95,300 square kilometers (36,800 sq mi). Its administrative center is the urban locality (a settlement) of Ust-Maya. Population: 8,629 (2010 Census); 11,568 (2002 Census); 20,337 (1989 Census). The population of Ust-Maya accounts for 3