0.01% of the population in Mahakam Hulu Regency practices Buddhism.

The Buddhist population in Mahakam Hulu Regency, as of December 31, 2023, was recorded as two individuals. Compared to the previous year, the number of Buddhist residents in the regency/city increased by one.

According to data from the Directorate General of Population and Civil Registration (Ditjen Dukcapil) of the Ministry of Home Affairs, the proportion of Buddhists in this regency/city reached 0.01 percent of the total population in 2023, which numbered 38,498.

Considering its distribution relative to the population of each area in East Kalimantan, the proportion of Buddhists in Mahakam Hulu Regency ranks tenth.

The following is a list of the population in East Kalimantan by religion in 2023:

* Catholic: 23,500 (61.04%)
* Muslim: 9,247 (24.02%)
* Protestant: 5,696 (14.8%)
* Hindu: 51 (0.13%)
* Buddhist: 2 (0.01%)
* Indigenous Beliefs: 2 (0.01%)
* Confucian: 0 (0.0%)

Compared to other regions in East Kalimantan, Buddhists in this regency/city rank tenth.

Other areas with the highest number of Buddhists are: Samarinda City (7,862), Balikpapan City (5,856), Berau Regency (648), Paser Regency (539), Kutai Kartanegara Regency (239), Kutai Timur Regency (137), Bontang City (133), North Penajam Paser Regency (45), and West Kutai Regency (36).