The Fillmore Armory, constructed in 1937-1938, was part of the second generation of Utah National Guard armories built to provide space for training, drills, and equipment storage at a time when few existing facilities could meet those needs. Begun in 1928 across Utah, this new wave of armory construction addressed the need for effective military preparation during peace as well as state and national emergencies. The Fillmore project was funded in the New Deal era through the Works Progress Administration during the Great Depression, employed mostly unskilled local laborers, was supervised by local men, and used locally purchased building materials, while Fillmore residents also donated funds and materials for a hardwood floor. The building was primarily constructed to house Utah National Guard artillery units, including batteries of the 213th Field Artillery Battalion, disbanded in 1967, and the 222nd Field Artillery Battalion; members trained in Fillmore before serving overseas during the Second World War and the Korean War, and the 222nd later completed two deployment tours during the Iraq War. Beyond military defense, the armory also served as a community recreation center and dance hall, and ownership was transferred from the Utah National Guard to the City of Fillmore in 2019 for continued public use.