Territorial evolution of Utah

The following timeline traces the territorial evolution of the U.S. State of Utah.

Timeline

 * Historical territorial claims of Spain in the present State of Utah:
 * Nueva Vizcaya, 1562–1821
 * Santa Fé de Nuevo Méjico, 1598–1821
 * Gran Cuenca, 1776–1821
 * Adams-Onís Treaty of 1819
 * Treaty of Córdoba of 1821
 * Historical territorial claims of Mexico in the present State of Utah:
 * Santa Fé de Nuevo México, 1821–1848
 * Gran Cuenca, 1821–1848
 * Treaty of Guadalupe Hidalgo of 1848
 * Historical political divisions of the United States in the present State of Utah:
 * Unorganized territory created by the Treaty of Guadalupe Hidalgo, 1848–1850
 * Compromise of 1850
 * State of Deseret (extralegal), 1849–1850
 * Territory of Utah, 1850–1896
 * Utah Organic Act, September 9, 1850
 * Eastern portion of the Utah Territory is incorporated into the new Territory of Colorado, February 28, 1861
 * Western portion of the Utah Territory is incorporated into the new Territory of Nevada, March 2, 1861
 * North-eastern portion of the Utah Territory is transferred to the Territory of Nebraska, March 2, 1861
 * Western 53 miles of the Utah Territory is transferred to the Territory of Nevada, July 14, 1862
 * Another 53 miles of the Utah Territory is transferred to the State of Nevada, May 5, 1866
 * North-eastern corner of the Utah Territory is incorporated into the new Territory of Wyoming, July 25, 1868
 * Utah Enabling Act, July 16, 1894
 * Territory of Jefferson (extralegal), 1859–1861
 * State of Utah since January 4, 1896