The country is an archipelago with an area of 265 square miles and a population of 92,500. Missionaries introduced Christianity into the area in the mid-19th century. According to 2005 government statistics, major religious groups include the Roman Catholic Church, 55 percent; Kiribati Protestant Church, 36 percent; The Church of Jesus Christ of Latter-day Saints (Mormons), 3 percent; the Baha'i Faith, 2 percent; and Seventh-day Adventists, 2 percent. Several groups claim to have higher numbers of adherents, but there is no independent confirmation. Persons with no religious affiliation account for less than 1 percent of the population. Members of the Catholic Church are concentrated in the northern islands, while Protestants are the majority in the southern islands.