Democrat infestation is in almost inverse proportion to the Mormon population of any area in the state.
With the exceptions of the mining communty of Carbon County, the Four Corners area and several mini-nests, the state is preponderantly Republican and Mormon.
Why?
My view is that riffraff gravitate to mostly larger urban areas, the mining unions are traditionally Democrat, and the Four Corners area perceives Demos as the Great White Father - SOCIALISM!