Tooele County (/tuˈɪlə/ too-IL-ə) is a county in the U.S. state of Utah. As of the 2010 United States Census, the population was 58,218. Its county seat and largest city is Tooele. The county was created in 1850 and organized the following year.
Tooele County lies on the west side of Utah. Its west border abuts the east border of the state of Nevada. Its northeast border abuts the Great Salt Lake. Three significant mountain ranges run north-south through the county. Its east boundary line is delineated by the crestline of the Oquirrh Mountains, which separate the Tooele Valley from the Salt Lake Valley. The Stansbury Mountains parallel the Oquirrhs in the eastern part of the county, and the Cedar Mountains also run parallel to the other two through the east-central part of the county. There are also isolated prominences across the county, especially at its SW corner. The county terrain is largely arid and unused for agriculture unless irrigation water is available. The county generally slopes to the north. Its highest elevation is Deseret Peak in the Stansburys, at 11,031′ (3362m) ASL. The county has a total area of 7,286 square miles (18,870 km), of which 6,941 square miles (17,980 km) is land and 345 square miles (890 km) (4.7%) is water.
Covering vast amounts of the Great Salt Lake desert west of Salt Lake Valley, Tooele County is the second largest county in Utah and among the driest. The Skull Valley Indian Reservation lies in Cedar Valley, between the Cedar and Stansbury mountain ranges.
As of the 2000 United States Census, there were 40,735 people, 12,677 households, and 10,128 families in the county. The population density was 5.87/sqmi (2.27/km²). There were 13,812 housing units at an average density of 1.99/sqmi (0.77/km²). The racial makeup of the county was 89.19% White, 1.28% Black or African American, 1.70% Native American, 0.60% Asian, 0.18% Pacific Islander, 4.50% from other races, and 2.55% from two or more races. Hispanic or Latino of any race were 10.34% of the population.
There were 12,677 households out of which 47.40% had children under the age of 18 living with them, 66.00% were married couples living together, 9.50% had a female householder with no husband present, and 20.10% were non-families. 16.80% of all households were made up of individuals and 6.10% had someone living alone who was 65 years of age or older. The average household size was 3.11 and the average family size was 3.51.
The county population contained 35.00% under the age of 18, 11.50% from 18 to 24, 29.50% from 25 to 44, 16.60% from 45 to 64, and 7.30% who were 65 years of age or older. The median age was 27 years. For every 100 females, there were 97.00 males. For every 100 females age 18 and over, there were 95.40 males.
The median income for a household in the county was $45,773, and the median income for a family was $50,438. Males had a median income of $37,861 versus $24,179 for females. The per capita income for the county was $16,321. About 5.20% of families and 6.70% of the population were below the poverty line, including 7.70% of those under age 18 and 7.00% of those age 65 or over.
Tooele County Utah neighborhoods include: 12 Tooele, 13 Tooele, 21 Tooele, 22tooele, 23tooele, 32 Tooele, Carr Fork, Copper Canyon, England Acres, Glen Eagles, Northlake, Overlake, Overpass Point, Pine Canyon, South Skyline