Utah is a landlocked state in the Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northeast, Idaho to the north, and Nevada to the west. In comparison to all the U.S. states and territories, Utah, with a population of just over three million, is the 13th-largest by area, the 30th-most populous, and the 11th-least densely populated. Urban development is mostly concentrated in two regions: the Wasatch Front in the north-central part of the state, which includes the state capital, Salt Lake City, and is home to roughly two-thirds of the population; and Washington County in the southwest, which has approximately 180,000 residents. Most of the western half of Utah lies in the Great Basin.
Utah has been inhabited for thousands of years by various Indigenous peoples, such as the ancient Puebloans, the Navajo, and the Ute. The first Europeans to arrive – in the mid-16th century – were the Spanish. Because of the region's challenging geography and harsh climate, it only became a peripheral part of New Spain (and later of Mexico). Even while it was Mexican territory, many of the Utah region's earliest European settlers were from the United States; notable among these were Mormons who were fleeing marginalization and persecution in the United States and arrived via the so-called Mormon Trail. In 1848, after the Mexican–American War, the region was annexed by the U.S., becoming part of the Utah Territory, which included what later became Colorado and Nevada. Disputes between the dominant Mormon community and Congress delayed Utah's admission as a state: in 1896, after it agreed to outlaw polygamy, it was admitted as the 45th state.
People from Utah are known as Utahns. Slightly over half of all Utahns are Mormons, the vast majority of whom are members of the Church of Jesus Christ of Latter-day Saints (LDS Church), which has its world headquarters in Salt Lake City; Utah is the only state where a majority of the population belongs to a single church. The LDS Church greatly influences Utah's culture, politics, and daily life. However, since the 1990s, Utah has become both more religiously diverse and more secular.
Utah has a highly diversified economy, with major sectors including transportation, education, information technology and research, government services, mining, multi-level marketing, and tourism. Utah has been one of the fastest growing states since 2000, with the 2020 U.S. census confirming the fastest population growth in the nation since 2010. St. George was the fastest-growing metropolitan area in the United States from 2000 to 2005. It has the 12th-highest median average income and the least income inequality of any U.S. state. Over time and influenced by climate change, droughts in Utah have been increasing in frequency and severity, putting a further strain on Utah's water security and impacting the state's economy.
Utah, now usually shortened to Ute, is the English name of an Indian tribe native to the region. It represents a borrowing of the Spanish Yuta, recorded from the 17th century onwards. The ultimate source of the name is uncertain; it lacks a counterpart in the Ute language (the Utes' name for themselves being Núuchi-u) and was thus presumably taken from the language of a neighboring people. It is commonly said to mean "people of the mountains".
Thousands of years before the arrival of Europeans, the Ancestral Puebloans and the Fremont people lived in what is now known as Utah, some of which spoke languages of the Uto-Aztecan group. Ancestral Pueblo peoples built their homes through excavations in mountains, and the Fremont people built houses of straw before disappearing from the region around the 15th century.
Another group of Native Americans, the Navajo, settled in the region around the 18th century. In the mid-18th century, other Uto-Aztecan tribes, including the Goshute, the Paiute, the Shoshone, and the Ute people, also settled in the region. These five groups were present when the first European explorers arrived.
The southern Utah region was explored by the Spanish in 1540, led by Francisco Vázquez de Coronado while looking for the legendary Cíbola. A group led by two Catholic priests—sometimes called the Domínguez–Escalante expedition—left Santa Fe in 1776, hoping to find a route to the coast of California. The expedition traveled as far north as Utah Lake and encountered the native residents. The Spanish made further explorations in the region but were not interested in colonizing the area because of its desert nature. In 1821, the year Mexico achieved its independence from Spain, the region became known as part of its territory of Alta California.
European trappers and fur traders explored some areas of Utah in the early 19th century from Canada and the United States. The city of Provo, Utah, was named for one Étienne Provost, who visited the area in 1825. The city of Ogden, Utah, was named after Peter Skene Ogden, a Canadian explorer who traded furs in the Weber Valley.
In late 1824, Jim Bridger became the first known English-speaking person to sight the Great Salt Lake. Due to the high salinity of its waters, he thought he had found the Pacific Ocean; he subsequently learned this body of water was a giant salt lake. After the discovery of the lake, hundreds of American and Canadian traders and trappers established trading posts in the region. In the 1830s, thousands of migrants traveling from the Eastern United States to the American West began to make stops in the region of the Great Salt Lake, then known as Lake Youta.
Latter Day Saint settlement (1847)
Following the death of Joseph Smith in 1844, Brigham Young, as president of the Quorum of the Twelve, became the leader of the LDS Church in Nauvoo, Illinois. To address the growing conflicts between his people and their neighbors, Young agreed with Illinois Governor Thomas Ford in October 1845 that the Mormons would leave by the following year.
Young and the first group of Mormon pioneers reached the Salt Lake Valley on July 24, 1847. Over the next 22 years, more than 70,000 pioneers crossed the plains and settled in Utah. For the first few years, Brigham Young and the thousands of early settlers of Salt Lake City struggled to survive. The arid desert land was deemed desirable by the Mormons as a place where they could practice their religion without harassment.
Settlers buried thirty-six Native Americans in one grave after an outbreak of measles occurred during the winter of 1847.
The first group of settlers brought three African slaves with them, making Utah the only place in the western United States to have African slavery. The three slaves, Green Flake, Hark Lay, and Oscar Crosby, came west with the first group of settlers in 1847.
Utah was a Mexican territory when the first pioneers arrived in 1847. Early in the Mexican–American War in late 1846, the United States had taken control of New Mexico and California. The entire Southwest became U.S. territory upon the signing of the Treaty of Guadalupe Hidalgo, February 2, 1848. The treaty was ratified by the United States Senate on March 11. Learning that California and New Mexico were applying for statehood, the settlers of the Utah area (originally having planned to petition for territorial status) applied for statehood with an ambitious plan for a State of Deseret.
The Mormon settlements provided pioneers for other settlements in the West. Salt Lake City became the hub of a "far-flung commonwealth" of Mormon settlements. With new church converts coming from the East and around the world, Church leaders often assigned groups of church members as missionaries to establish other settlements throughout the West. They developed irrigation to support fairly large pioneer populations along Utah's Wasatch front (Salt Lake City, Bountiful and Weber Valley, and Provo and Utah Valley). Throughout the remainder of the 19th century, Mormon pioneers established hundreds of other settlements in Utah, Idaho, Nevada, Arizona, Wyoming, California, Canada, and Mexico—including in Las Vegas, Nevada; Franklin, Idaho (the first European settlement in Idaho); San Bernardino, California; Mesa, Arizona; Star Valley, Wyoming; and Carson Valley, Nevada.