3.8% of the population in Seruyan Regency is Catholic.

The Catholic population in Seruyan Regency, as of December 31, 2023, was recorded at 5,757 individuals. This number increased by 939 individuals compared to the previous year, which reported 4,818 individuals.

According to data from the Directorate General of Population and Civil Registration (Ditjen Dukcapil) of the Ministry of Home Affairs, the proportion of the Catholic population in this regency/city reached 3.8 percent of the total population in 2023, which amounted to 153,160 individuals.

Considering its distribution across the population of each region in Central Kalimantan, the proportion of the Catholic population in Seruyan Regency ranks ninth.

Below is the population of Central Kalimantan by religion in 2023:

• Islam 134,160 (87.59%)
• Protestant 9,073 (5.92%)
• Hindu 6,958 (4.54%)
• Catholic 5,757 (3.76%)
• Buddhist 49 (0.03%)
• Confucian 5 (0.0%)
• Indigenous Beliefs 3 (0.0%)

Other regencies/cities in Central Kalimantan with the largest Catholic populations, in descending order, are: Lamandau Regency (17,389 individuals), Barito Timur Regency (10,119 individuals), Kotawaringin Timur Regency (9,555 individuals), Barito Selatan Regency (9,342 individuals), Barito Utara Regency (8,865 individuals), Murung Raya Regency (6,575 individuals), Palangkaraya City (6,170 individuals), Kotawaringin Barat Regency (6,170 individuals), Katingan Regency (3,459 individuals), and Gunung Mas Regency (2,971 individuals).