0.04% of the population in Soppeng Regency is Catholic.

The Catholic population in Soppeng Regency as of December 31, 2023, was recorded at 106 individuals. This represents a decrease of 94 individuals compared to the previous year's reported figure of 200.

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 0.04 percent of the total population in 2023, which numbered 240,960.

Considering the distribution across the population of each region in South Sulawesi, the proportion of Catholics in Soppeng Regency ranks 19th.

Below is the population of South Sulawesi by religion in 2023:
* Islam 240,094 (99.64%)
* Protestant 744 (0.31%)
* Catholic 106 (0.04%)
* Buddhist 8 (0.0%)
* Hindu 3 (0.0%)
* Confucian 0 (0.0%)
* Indigenous Beliefs 0 (0.0%)

Compared to other regions in South Sulawesi, the Catholic population in this regency/city ranks 19th out of 24 regencies/cities in South Sulawesi province.

Other regions with the highest number of Catholics in South Sulawesi province are Makassar City (42,548), Tana Toraja Regency (40,258), North Toraja Regency (34,110), East Luwu Regency (7,090), North Luwu Regency (5,116), Gowa Regency (4,245), Luwu Regency (4,173), Pinrang Regency (4,119), Palopo City (3,138), and Parepare City (2,131).