0.49% of the population in Parigi Moutong Regency is Catholic.

The Catholic population in Parigi Moutong Regency, as of December 31, 2023, was recorded at 2,235 individuals. This represents a decrease of 4,144 individuals compared to the previous year's reported figure of 6,379.

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 0.49 percent of the total population in 2023, which numbered 457,030 individuals.

Considering its distribution relative to the population of each region in Central Sulawesi, the proportion of the Catholic population in Parigi Moutong Regency ranks sixth.

The following is a list of the population of Central Sulawesi by religion in 2023:
* Islam: 374,258 (81.89%)
* Hindu: 42,734 (9.35%)
* Protestant: 37,709 (8.25%)
* Catholic: 2,235 (0.49%)
* Buddhist: 95 (0.02%)
* Confucian: 0 (0.0%)
* Indigenous Beliefs: 0 (0.0%)

Compared to other regions in Central Sulawesi, the Catholic population in this regency/city ranks sixth out of the 13 regencies/cities in Central Sulawesi Province.

Other regions in Central Sulawesi Province with larger Catholic populations, in descending order, are: Banggai Regency (5,237 individuals), Banggai Kepulauan Regency (4,616 individuals), Palu City (3,451 individuals), Morowali Utara Regency (3,128 individuals), Banggai Laut Regency (2,585 individuals), Poso Regency (2,224 individuals), Buol Regency (1,742 individuals), Morowali Regency (1,315 individuals), Sigi Regency (883 individuals), and Toli Toli Regency (834 individuals).