The UIAP was founded in 1993 by Will Christensen, Wayne Hill, and John Poulson, Mormons in Utah that wanted a "truly conservative" party, in line with the teachings of Ezra Taft Benson, the 13th president of the Church of Jesus Christ of Latter-day Saints.

[8] At the same time the National party announced that they would be running Cary Lee Peterson for Guam's at-large congressional district.

In 2023 the party surpassed 80,000 registered members, and announced plans to open branches to represent Mormon colonies in Central and South America.

[12] During the 2024 Utah gubernatorial election the party ran Tommy Williams who got 1.84% of the vote.

[3] This became a more serious problem in 2021 when the Utah state government passed a bill that cut off Utahns’ ability to switch political party affiliation months before primary elections, which saw a huge surge in the party's numbers as voters thought registering as "Independent" meant being an Independent Voter.