"ECUADOR 2018 INTERNATIONAL RELIGIOUS FREEDOM REPORT"(PDF). According to a 2012 survey by the National Institute of Statistics and Census, the most recent government survey available, approximately 92 percent of the population professes a religious affiliation or belief. Of those, 80.4 percent is Roman Catholic; 11.3 percent evangelical Christian, including Pentecostals; and 1.3 percent Jehovah’s Witnesses. Seven percent belongs to other religious groups.