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San Juan County, Utah facts for kids

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San Juan County
San Juan County Courthouse, Monticello
San Juan County Courthouse, Monticello
Map of Utah highlighting San Juan County
Location within the U.S. state of Utah
Map of the United States highlighting Utah
Utah's location within the U.S.
Country  United States
State  Utah
Founded February 17, 1880
Named for San Juan River
Seat Monticello
Largest city Blanding
Area
 • Total 7,933 sq mi (20,550 km2)
 • Land 7,820 sq mi (20,300 km2)
 • Water 113 sq mi (290 km2)  1.4%
Population
 (2020)
 • Total 14,518
 • Density 1.83008/sq mi (0.70660/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district 3rd

San Juan County (/sæn ˈwɑːn/ SAN-wahn) is a county in the southeastern portion of the U.S. state of Utah. As of the 2020 United States Census, the population was 14,518. Its county seat is Monticello, while its most populous city is Blanding. The Utah State Legislature named the county for the San Juan River, itself named by Spanish explorers (in honor of Saint John).

San Juan County borders Arizona, Colorado, and New Mexico at the Four Corners.

History

The Utah Territory authorized the creation of San Juan County on February 17, 1880, with territories annexed from Iron, Kane, and Piute counties. There has been no change in its boundaries since its creation. Monticello was founded in 1887, and by 1895 it was large enough to be designated the seat of San Juan County.

Geography

Ruins in Montezuma Canyon With stones of Unusual size San Juan Utah
Ruins in Montezuma Canyon with stones of unusual size

San Juan County lies in the southeastern corner of the state of Utah. Its borders coincide with the borders of the states of Colorado, New Mexico, and Arizona with Utah. The convergence point of these borders, Four Corners Monument, is located at the extreme southeastern corner of the county.

The county's terrain generally slopes to the west and the south, with its highest point, Mount Peale, at 12,726 feet (3,879 m) above sea level. The county has a total area of 7,933 square miles (20,550 km2), of which 7,820 square miles (20,300 km2) is land and 113 square miles (290 km2) (1.4%) is water. It is the largest county by area in Utah.

The county's western and southern boundaries lie deep within gorges carved by the Colorado and San Juan Rivers. Tributary canyons, cutting through rock layers of the surrounding deserts, have carved the land up with chasms, cliffs, and plateaus. In the center of the county is Cedar Mesa, Comb Wash, Natural Bridges, and Hovenweep National Monuments. Canyonlands National Park lies mainly within the county borders. The Eastern side of Glen Canyon National Recreation Area / Lake Powell is also in the county.

The Blue (Abajo) Mountains and the La Sal Mountains exceed 12,000 feet (3,700 m) in elevation. Both ranges are covered with lush forests, contrasting the scenery below. The elevation change within the county is from nearly 13,000 feet (4,000 m) in the La Sal Mountains to 3,000 feet (910 m) at Lake Powell, a difference of about 10,000 feet (3,000 m).

The county's towns lie primarily on a north-south axis along U.S. routes 191 and 163 from La Sal in the north to Monument Valley in the south.

Natural resources

House on Fire Ruin
House on Fire ruin, one of many Ancestral Pueblo ruins in the county

In 2018, the only operating uranium processing plant in the United States was located in the town of Blanding; however, the plant was moved to be on standby in 2019.

San Juan County is home to numerous oil and gas fields, including Squaw Canyon Oil Field, that produce primarily from the Desert Creek and Ismay Formations.

Major highways

  • US-163
  • US-191
  • US-491
  • SR-46
  • SR-95
  • SR-162
  • SR-261
  • SR-276

Adjacent counties

ISS067-E-175591 Confluence of the Escalante and Colorado rivers in Utah
The border between San Juan (right) and Kane (left) counties along Lake Powell, taken July 4, 2022, from the International Space Station

San Juan County is bordered by more counties than any other county in the United States, at 14.

Protected areas

Demographics

Historical population
Census Pop.
1880 204
1890 365 78.9%
1900 1,023 180.3%
1910 2,377 132.4%
1920 3,379 42.2%
1930 3,496 3.5%
1940 4,712 34.8%
1950 5,315 12.8%
1960 9,040 70.1%
1970 9,606 6.3%
1980 12,253 27.6%
1990 12,621 3.0%
2000 14,413 14.2%
2010 14,746 2.3%
2020 14,518 −1.5%
US Decennial Census
1790–1960 1900–1990
1990–2000 2010 2020

2020 census

San Juan County racial composition
Race Num. Perc.

Native American

7,186 49.49%
White (non-Hispanic) 6,038 41.58%
Black or African American (non-Hispanic) 32 0.16%
Asian 34 0.23%
Other/Mixed 481 3.31%
Hispanic or Latino 747 5.14%

As of the 2020 United States census, there were 14,518 people residing in the county.

2010 Census

As of the 2010 United States Census, there were 14,746 people and 4,505 households in San Juan County. The racial and ethnic composition of the population was 50.4% Native American, 45.8% White, 0.3% Asian, 0.2% African American and 2.3% reporting two or more races. 4.4% of the population was Hispanic or Latino of any race.

Communities

Cities

Towns

Census-designated places

Unincorporated communities

See also

Kids robot.svg In Spanish: Condado de San Juan (Utah) para niños

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