Davis County is a county in northern Utah, United States. As of the 2010 United States Census, the population was 306,479, making it Utah's third-most populous county. Its county seat is Farmington, and its largest city is Layton. Davis County is part of the Ogden-Clearfield, UT Metropolitan Statistical Area as well as the Salt Lake City-Provo-Orem, UT Combined Statistical Area.

Salt Lake City (often shortened to Salt Lake and abbreviated as SLC) is the capital and most populous city of the U.S. state of Utah, as well as the seat of Salt Lake County, the most populous county in Utah. With an estimated population of 199,723 in 2020, the city is the core of the Salt Lake City metropolitan area, which has a population of 1,257,936 (2020 census). Salt Lake City is further situated within a larger metropolis known as the Salt Lake City–Ogden–Provo Combined Statistical Area, a corridor of contiguous urban and suburban development stretched along a 120-mile (190 km) segment of the Wasatch Front, comprising a population of 2,606,548 (as of 2018 estimates), making it currently the 22nd largest in the nation. It's also the central core of the larger of only two major urban areas located within the Great Basin (the other being Reno, Nevada). Salt Lake City was founded in 1847 by early pioneer settlers, led by Brigham Young, who were seeking to escape persecution they had experienced while living farther east. The Mormon pioneers, as they would come to be known, entered a semi-arid valley and immediately began planning and building an extensive irrigation network which could feed the population and foster future growth. Salt Lake City's street grid system is based on a standard compass grid plan, with the southeast corner of Temple Square (the area containing the Salt Lake Temple in downtown Salt Lake City) serving as the origin of the Salt Lake meridian. Owing to its proximity to the Great Salt Lake, the city was originally named Great Salt Lake City. In 1868, the word "Great" was dropped from the city's name.Immigration of international members of The Church of Jesus Christ of Latter-day Saints, mining booms, and the construction of the first transcontinental railroad initially brought economic growth, and the city was nicknamed "The Crossroads of the West". It was traversed by the Lincoln Highway, the first transcontinental highway, in 1913. Two major cross-country freeways, I-15 and I-80, now intersect in the city. The city also has a belt route, I-215. Salt Lake City has developed a strong tourist industry based primarily on skiing and outdoor recreation. It hosted the 2002 Winter Olympics. It is known for its politically liberal and diverse culture, which stands at contrast with the rest of the state's conservative leanings. It is home to a significant LGBT community and hosts the annual Utah Pride Festival. It is the industrial banking center of the United States. Salt Lake City and the surrounding area are also the location of several institutions of higher education including the state's flagship research school, the University of Utah.

Utah ( YOO-tah, (listen) YOO-taw) is a state in the Mountain West subregion of the Western United States. It 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. Of the fifty U.S. states, Utah is the 13th-largest by area; with a population over three million, it is the 30th-most-populous and 11th-least-densely populated. Urban development is mostly concentrated in two areas: the Wasatch Front in the north-central part of the state, which is home to roughly two-thirds of the population and includes the capital city, Salt Lake City; and Washington County in the south, with more than 170,000 residents. Most of the western half of Utah lies in the Great Basin. Utah has been inhabited for thousands of years by various indigenous groups such as the ancient Puebloans, Navajo and Ute. The Spanish were the first Europeans to arrive in the mid-16th century, though the region's difficult geography and harsh climate made it a peripheral part of New Spain and later Mexico. Even while it was Mexican territory, many of Utah's earliest settlers were American, particularly Mormons fleeing marginalization and persecution from the United States. Following the Mexican–American War in 1848, the region was annexed by the U.S., becoming part of the Utah Territory, which included what is now Colorado and Nevada. Disputes between the dominant Mormon community and the federal government delayed Utah's admission as a state; only after the outlawing of polygamy was it admitted in 1896 as the 45th. 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 Utahn culture, politics, and daily life, though since the 1990s the state has become more religiously diverse as well as secular. Utah has a highly diversified economy, with major sectors including transportation, education, information technology and research, government services, mining, 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. 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. A 2012 Gallup national survey found Utah overall to be the "best state to live in the future" based on 13 forward-looking measurements including various economic, lifestyle, and health-related outlook metrics.

Logan is a city in Cache County, Utah, United States. The 2010 census recorded the population was 48,174, with an estimated population of 51,542 in 2018. By 2050 the population of Logan is expected to double. Logan is the county seat of Cache County and the principal city of the Logan metropolitan area, which includes Cache County and Franklin County, Idaho. The Logan metropolitan area contained 125,442 people as of the 2010 census and was declared by Morgan Quitno in 2005 and 2007 to be the safest in the United States in those years. Logan also is the location of the main campus of Utah State University.