The U.S. government estimates the total population at 96,000 (July 2018 estimate).  According to the 2011 census, 17.6 percent of the population is Anglican, 12.4 percent Seventh-day Adventist, 12.2 percent Pentecostal, 8.3 percent Moravian, 8.2 percent Roman Catholic, and 5.6 percent Methodist.  Those with unspecified or no religious beliefs account for 5.5 percent and 5.9 percent of the population, respectively.  Members of the Baptist Church, the Church of God, and the Wesleyan Holiness Consortium each account for less than 5 percent.  The census categorizes an additional 12.2 percent of the population as belonging to other religious groups, including Rastafarians, Muslims, Hindus, and Baha’is, without providing percentages for each group.  According to anecdotal information, these four religious groups are listed from largest to smallest.

The U.S. government estimates the total population at 44.7 million (July 2018 estimate).  Religious demographic and statistical data from nongovernmental organizations (NGOs), research centers, and religious leaders vary.  According to a 2014 Pew Research Center study, Catholics constitute 71 percent of the population, Protestants 15 percent, and atheists, agnostics, and those with no religious affiliation 11 percent.  Other sources state Seventh-day Adventists, Baptists, Jehovah’s Witnesses, Lutherans, Methodists, and members of The Church of Jesus Christ of Latter-day Saints (Church of Jesus Christ) together total 3 percent of the population.  According to the Pew study, the Jewish population is approximately 0.5 percent, and the Muslim population is estimated at 1 percent.  Evangelical Christian communities, particularly Pentecostals, are growing in size, but no reliable statistics are available.  There are also a small number of Baha’is, Buddhists, and adherents of indigenous religions in the country; however, no data are available on the size of these groups.

The U.S. government estimates the total population at 126 million (July 2018 estimate).  According to the 2010 census, approximately 83 percent identify as Catholic, 5 percent evangelical Protestant, 1.6 percent Pentecostal, 1.4 percent Jehovah’s Witnesses, and 0.5 percent Jewish.  Other religious groups include The Church of Jesus Christ of Latter-day Saints and Muslims.  More than 2 percent of the population reports practicing a religion not otherwise specified, and nearly 5 percent reports not practicing any religion.  Some indigenous persons adhere to syncretic religions drawing from indigenous beliefs.

Official statistics based on self-identification during the 2010 census sometimes differ from the membership figures stated by religious groups.  Approximately 315,000 individuals identify themselves as members of the Church of Jesus Christ of Latter-day Saints in the 2010 census.  Church officials, however, state their membership is approximately 1.3 million.  There are large Protestant communities in the southern states of Chiapas and Tabasco.  In Chiapas, evangelical Protestant leaders state nearly half of the state’s 2.4 million inhabitants are members of evangelical groups, including Seventh-day Adventists; however, fewer than 5 percent of 2010 census respondents in Chiapas self-identify as evangelical Protestant.

According to the 2010 census, the Jewish community totals approximately 67,500 persons, of whom nearly 42,000 live in Mexico City and the state of Mexico.  Nearly half of the country’s approximately 4,000 Muslims are concentrated in Mexico City and the state of Mexico.  There is also an Ahmadi Muslim population of several hundred living in Chiapas, most of whom are converts and of ethnic Tzotzil Maya origin.  There are also small indigenous communities of Baha’i that number in the hundreds.  An estimated half of the approximately 100,000 Mennonites are concentrated in the state of Chihuahua.