Summit County, Utah

Summit County is a county in the U.S. state of Utah, occupying a rugged and mountainous area. As of the 2020 United States census, the population was 42,357. Its county seat is Coalville, and the largest city is Park City.

The county was created by the Utah Territory legislature on January 13, 1854, with its description containing a portion of the future state of Wyoming. It was not organized then but was attached to Great Salt Lake County for administrative and judicial purposes. The county government was completed by March 4, 1861, so its attachment to the other county was terminated. The county boundaries were altered in 1856 and in 1862. In 1868 the Wyoming Territory was created by the US government, effectively de-annexing all Summit County areas falling within the new territory. The boundaries were further altered in 1872 and 1880. Its final alteration occurred on January 7, 1918, when Daggett's creation took a portion of its eastern territory. Its boundary has remained unchanged since that creation. It is so named because it includes 39 of the highest mountain peaks in Utah.

The county's mean elevation is 8,388 feet (2,557 m) above sea level, which is the second-highest (after Taos County, New Mexico) of any county outside Colorado. Owing to its proximity to Salt Lake City, Park City has acquired a reputation as an upscale getaway, bringing new development to the area.

Summit County is part of the Heber, UT Micropolitan Statistical Area, which is also included in the Salt Lake City-Provo-Orem, UT Combined Statistical Area.

Summit County lies on the upper east side of Utah. Its northeast borders abut Wyoming's southern and western borders. Its central and eastern portion consists largely of the east–west oriented Uinta Mountains, while its western portion runs to the east slopes of the north–south oriented Wasatch Mountains. The county's highest point is Gilbert Peak, on the border with Duchesne County, at 13,448 ft (4,099 m) ASL. The county has an area of 1,882 square miles (4,870 km²), of which 1,872 square miles (4,850 km²) is land and 10 square miles (26 km²) (0.5%) is water.

According to the 2020 United States census and 2020 American Community Survey, there were 42,357 people in Summit County with a population density of 22.6 people per square mile (8.7/km²). Among non-Hispanic or Latino people, the racial makeup was 35,108 (82.9%) White, 163 (0.4%) African American, 67 (0.2%) Native American, 723 (1.7%) Asian, 42 (0.1%) Pacific Islander, 155 (0.4%) from other races, and 1,362 (3.2%) from two or more races. 4,737 (11.2%) people were Hispanic or Latino.

There were 21,578 (50.94%) males and 20,779 (49.06%) females, and the population distribution by age was 10,351 (24.4%) under the age of 18, 26,149 (61.7%) from 18 to 64, and 5,857 (13.8%) who were at least 65 years old. The median age was 40.8 years.

There were 15,688 households in Summit County with an average size of 2.70 of which 11,419 (72.8%) were families and 4,269 (27.2%) were non-families. Among all families, 9,553 (60.9%) were married couples, 671 (4.3%) were male householders with no spouse, and 1,195 (7.6%) were female householders with no spouse. Among all non-families, 3,171 (20.2%) were a single person living alone and 1,098 (7.0%) were two or more people living together. 5,424 (34.6%) of all households had children under the age of 18. 12,186 (77.7%) of households were owner-occupied while 3,502 (22.3%) were renter-occupied.