99.8% of the population in Kerinci Regency is Muslim.

The Muslim population in Kerinci Regency, as of December 31, 2023, was recorded at 266,580 people. This represents an increase of 9,395 individuals compared to the previous year, which reported 257,190 people.

According to data from the Directorate General of Population and Civil Registration (Ditjen Dukcapil) of the Ministry of Home Affairs, the proportion of Muslims in this regency/city reached 99.8 percent of the total population in 2023, which numbered 267,170 people.

Considering the distribution across different regions in Jambi Province, the proportion of Muslims in Kerinci Regency ranks ninth.

The population of Jambi Province by religion in 2023 was as follows:
* Islam: 266,584 (99.78%)
* Protestant: 469 (0.18%)
* Catholic: 105 (0.04%)
* Indigenous Beliefs: 9 (0.0%)
* Hindu: 1 (0.0%)
* Buddhist: 1 (0.0%)
* Confucian: 0 (0.0%)

Compared to other regions in Jambi Province, the Muslim population in this regency/city ranks ninth out of 11 regencies/cities in Jambi Province.

Other regions in Jambi Province with the largest Muslim populations are: Jambi City (557,775), Muaro Jambi Regency (418,003), Merangin Regency (379,978), Bungo Regency (362,010), Tebo Regency (349,107), West Tanjung Jabung Regency (309,005), Batang Hari Regency (300,273), Sarolangun Regency (294,838), East Tanjung Jabung Regency (236,892), and Sungai Penuh City (100,288).