The Idaho Falls Idaho Temple (formerly the Idaho Falls Temple) is the tenth constructed and eighth operating temple of The Church of Jesus Christ of Latter-day Saints (LDS Church). Located in the city of Idaho Falls, Idaho it was the first LDS temple built in Idaho, and the first temple built with a modern single-spire design. The LDS temple in Idaho Falls was announced on March 3, 1937. The building was designed by the church board of temple architects; Edward O. Anderson, Georgious Y. Cannon, Ramm Hansen, John Fetzer, Hyrum Pope, Lorenzo Snow Young.