0.1% of the population in Sawahlunto/Sijunjung Regency is Catholic.

The Catholic population in Sawahlunto/Sijunjung Regency as of December 31, 2023, was recorded at 300 individuals. Compared to the previous year, the number of Catholics in the regency/city increased by 269 individuals.

According to data from the Directorate General of Population and Civil Registration (Ditjen Dukcapil) of the Ministry of Home Affairs, the proportion of Catholics in this regency/city reached 0.1 percent of the total population in 2024, which numbered 245,940 individuals.

Considering its distribution relative to the population of each area in West Sumatra, the proportion of Catholics in Sawahlunto/Sijunjung Regency ranks tenth.

Meanwhile, the population of West Sumatra by religion in 2023 was as follows:

* Islam: 243,088 (98.84%)
* Protestant: 945 (0.38%)
* Catholic: 300 (0.12%)
* Hindu: 7 (0.0%)
* Buddhist: 2 (0.0%)
* Indigenous Beliefs: 0 (0.0%)
* Confucianism: 0 (0.0%)

Compared to other regions in West Sumatra, Catholics in this regency/city rank tenth out of the 19 regencies/cities in West Sumatra Province.

Other areas with the highest number of Catholics in West Sumatra Province are: Mentawai Islands Regency (27,495), Padang City (12,125), Pasaman Barat Regency (2,831), Bukittinggi City (1,157), Payakumbuh City (670), Dharmasraya Regency (629), Padang Pariaman Regency (517), Agam Regency (476), Padang Panjang City (348), and Solok City (298).