19% of the population in Katingan Regency is Protestant.

The Protestant population in Katingan Regency as of December 31, 2023, was recorded at 33,689 people. This is an increase of 4,596 individuals compared to the previous year, which reported 29,093 people.

According to data from the Directorate General of Population and Civil Registration (Ditjen Dukcapil) of the Ministry of Home Affairs, the proportion of Protestants in this regency/city reached 19 percent of the total population in 2023, which numbered 177,110 people.

In terms of distribution across the districts in Central Kalimantan, the proportion of Protestants in Katingan Regency ranks fifth.

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

* Islam: 110,346 (62.31%)
* Protestant: 33,689 (19.02%)
* Hindu: 29,590 (16.71%)
* Catholic: 3,459 (1.95%)
* Buddhist: 22 (0.01%)
* Confucian: 0 (0.0%)
* Other beliefs: 0 (0.0%)

Other regencies/cities in Central Kalimantan with the highest Protestant populations are: Gunung Mas Regency (85,584), Palangkaraya City (78,575), Kapuas Regency (48,396), Barito Timur Regency (42,326), Pulang Pisau Regency (27,533), Kota Waringin Timur Regency (26,524), Barito Selatan Regency (25,164), Lamandau Regency (25,098), Murung Raya Regency (20,396), and Barito Utara Regency (16,805).