The U.S. government estimates the total population at 10.5 million (midyear 2020 estimate). According to a 2019 Latinobarometer survey, the population is 49 percent Catholic, compared with 55 percent in a 2016 Latinobarometer survey and 68 percent in 2008. The same survey indicates 26 percent of the population is evangelical Protestant, compared with 12 percent in 2008. The 2018 Latinobarometer survey found 29.4 percent have no declared religion or identify as atheist or agnostic, compared with 29.1 percent in 2017 and 13 percent in 2015. Other faiths include Seventh-day Adventists, Jehovah’s Witnesses, the Church of Jesus Christ, and non-evangelical Protestants. According to a November estimate by the Dominican Council of Evangelical Unity, evangelical Protestants make up approximately 30 percent of the population, with the number of Pentecostals growing the fastest.

According to representatives of the Muslim community, there are approximately 2,000 to 2,500 Muslims throughout the country. Jewish leaders state that most of the approximately 350 members of the Jewish community live in Santo Domingo, with a small community in Sosua. There are small numbers of Buddhists, Hindus, and Baha’is.

Most Haitian immigrants are Christians, including evangelical Protestants, Catholics, and Seventh-day Adventists. According to the Dominican National Statistics Office, in 2017, the most recent survey year, there were 498,000 Haitian immigrants in the country. An unknown number practice Voodou or other Afro-Caribbean beliefs such as Santeria.