Mahakam Ulu Regency

Mahakam Ulu Regency Kabupaten Mahakam Ulu
Regency
A cliff in Mahakam river
Seal
Location within East Kalimantan
Mahakam Ulu Regency Location in Kalimantan and Indonesia Show map of Kalimantan Mahakam Ulu Regency Mahakam Ulu Regency (Indonesia) Show map of Indonesia
Coordinates: 0°30′N 115°17′E / 0.5°N 115.28°E / 0.5; 115.28
Country	Indonesia
Province	East Kalimantan
Capital	Ujoh Bilang
Government
• Regent	Bonifasius Belawan Geh
• Vice Regent	Y. Juan Jenau
Area
• Total	7,115.02 sq mi (18,427.81 km2)
Population  (mid 2023 estimate)
• Total	38,498
• Density	5.4/sq mi (2.1/km2)
	[1]
Time zone	UTC+8 (ICST)
Area code	(+62) 545
HDI (2022)	0.687 (Medium)[2]
Website	mahakamulukab.go.id

Mahakam Ulu Regency is a regency (kabupaten) in the province of East Kalimantan, Indonesia. As the name implies, it comprises the upper valley of the Mahakam River. It covers an area of 18,427.81 km². The regency was established on 14 December 2012, formed from the former northern districts of West Kutai Regency.^[3] The districts now forming the regency held a combined population of 24,994 at the 2010 Census;^[4] the population for the new regency at the 2020 Census was 32,513;^[5] the official estimate as at mid 2023 was 38,498. ^[1] The administrative capital is at Ujoh Bilang. It is the only regency in East Kalimantan to share an international land border with the Malaysian state of Sarawak.