since 2010. St. George was the fastest-growing metropolitan area in the United States from 2000 to 2005. Utah ranks among the overall best states in metrics such as healthcare, governance, education, and infrastructure. It has the 14th-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. Etymology The name Utah is said to derive from the name of the Ute tribe, meaning 'people of the mountains'. However, no such word actually exists in the Utes' language, and the Utes refer to themselves as . The meaning of Utes as 'the mountain people' has been attributed to the neighboring Pueblo Indians, as well as to the Apache word , which means 'one that is higher up' or 'those that are higher up'. In Spanish, it was pronounced ; subsequently, English-speaking people may have adapted the word as Utah. History Pre-Columbian Thousands of years before the arrival of European explorers, 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. Spanish exploration (1540) 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