The Manti Utah Temple, one of the first temples built by The Church of Jesus Christ of Latter-day Saints is found in Manti and dominates the area's skyline. The city is also the headquarters of a polygamist offshoot of the mainstream LDS Church, the True and Living Church of Jesus Christ of Saints of the Last Days. Manti annually hosts the two-week long Mormon Miracle Pageant, one of the city's greatest sources of revenue. Manti is the home of Manti High School with its mascot the Templars.
There were 930 households out of which 46.7% had children under the age of 18 living with them, 68.0% were married couples living together, 9.7% had a female householder with no husband present, and 20.2% were non-families. 18.8% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 3.25 and the average family size was 3.74.
In the city the population was spread out with 38.1% under the age of 18, 10.6% from 18 to 24, 20.6% from 25 to 44, 17.6% from 45 to 64, and 13.2% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 97.8 males. For every 100 females age 18 and over, there were 91.1 males.
The median income for a household in the city was $32,844, and the median income for a family was $37,163. Males had a median income of $30,156 versus $22,500 for females. The per capita income for the city was $12,677. About 11.4% of families and 13.0% of the population were below the poverty line, including 16.0% of those under age 18 and 7.8% of those age 65 or over.
Manti was one of the first communities settled in what was to become Utah. Chief Wakara (or Walker), a Ute Tribe leader, invited Brigham Young to send Mormon colonists to the area. In 1849, Brigham Young dispatched a company of about 225 settlers, consisting of several families, to the Sanpitch (now Sanpete) Valley. Under the direction of Isaac Morley, the settlers arrived at the present location of Manti in November. They endured a severe winter by living in temporary shelters dug into the south side of the hill on which the Manti Temple now stands. Brigham Young named the new community Manti, after a city mentioned in the Book of Mormon. Manti was incorporated in 1851. The first mayor of Manti was Dan Jones. Manti served as a hub city for the settlement of other communities in the valley.
Relations with the local Native Americans deteriorated rapidly and the Walker War soon ensued. The war consisted primarily of various raids conducted by the Native Americans against Mormon outposts in Central and Southern Utah. The Walker War ended in the mid-1850s in an understanding negotiated between Brigham Young and Wakara. Shortly thereafter, Welcome Chapman (who succeeded Morley) and Wakara oversaw the baptism of scores of Wakara's tribe members. Although immediate hostilities ended, none of the underlying conflicts were resolved.
In 1865 Utah's Black Hawk War erupted when an incident between a Manti resident and a young chieftain exploded into open warfare between the Mormon settlers and the local Native Americans. Forts were built in Manti and other nearby communities. Smaller settlements in the area were temporarily abandoned for the duration of the war. In the fall of 1867, Chief Black Hawk made peace with the settlers, but sporadic violence occurred until 1872 when federal troops finally intervened. Many Mormon settlers who fought and died in the wars are buried in the Manti Cemetery. Most of the Utes were eventually relocated to the Uintah and Ouray Indian Reservation in Eastern Utah.