Utah is a state in the United States. It became the 45th state admitted to the Union on January 4, 1896. Utah is the 13th-largest, the 33rd-most populous, and the 10th-least-densely populated of the 50 United States. Utah has a population of about 2.9 million, approximately 80% of whom live along the Wasatch Front, centering on Salt Lake City, leaving vast expanses of the state nearly uninhabited. Utah is bordered by Colorado to the east, Wyoming to the northeast, Idaho to the north, Arizona to the south, and Nevada to the west. It also touches a corner of New Mexico in the southeast.