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Grand County, Utah
Seal of Grand County, Utah
Map of Utah highlighting Grand County
Location in the state of Utah
Map of the USA highlighting Utah
Utah's location in the U.S.
Founded 1890
Seat Moab
Largest City Moab
 - Total
 - Land
 - Water

3,684 sq mi (9,542 km²)
3,672 sq mi (9,510 km²)
12 sq mi (31 km²), 0.3%
 - (2015)
 - Density

2.5/sq mi (1/km²)
Time zone Mountain: UTC-7/-6
Named for: The Colorado River (then the "Grand River")

Grand County is a county located in the U.S. state of Utah. As of the 2010 census, the population was 9,225. Its county seat and largest city is Moab. The county was named for the Colorado River, which at the time of statehood was known as the Grand River. It is west from the Colorado state line.


Delicate arch sunset
Delicate Arch, one of the most famous arches in Arches National Park

According to the U.S. Census Bureau, the county has a total area of 3,684 square miles (9,540 km2), of which 3,672 square miles (9,510 km2) is land and 12 square miles (31 km2) (0.3%) is water. The Green River forms the western boundary and Colorado lies on the eastern boundary. The Colorado River flows through the southeast corner. Deserts, cliffs and plateaus make up the scenery, with few settlements apart from the city of Moab, a Colorado River oasis. Arches National Park lies in the southern part of the county, just north of Moab. Also, the northernmost extension of Canyonlands National Park lies in the southwest corner of the county.

Adjacent counties

National protected areas

  • Arches National Park
  • Canyonlands National Park (part)
  • Manti-La Sal National Forest (part)
  • McInnis Canyons National Conservation Area (part)


Historical population
Census Pop.
1890 541
1900 1,149 112.4%
1910 1,595 38.8%
1920 1,808 13.4%
1930 1,813 0.3%
1940 2,070 14.2%
1950 1,903 −8.1%
1960 6,345 233.4%
1970 6,688 5.4%
1980 8,241 23.2%
1990 6,620 −19.7%
2000 8,485 28.2%
2010 9,225 8.7%
Est. 2015 9,516 3.2%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2014

As of the census of 2000, there were 8,485 people, 3,434 households, and 2,170 families residing in the county. The population density was 2 people per square mile (1/km²). There were 4,062 housing units at an average density of 1 per square mile (0/km²). The racial makeup of the county was 92.65% White, 0.25% Black or African American, 3.85% Native American, 0.22% Asian, 0.05% Pacific Islander, 1.66% from other races, and 1.32% from two or more races. 5.55% of the population were Hispanic or Latino of any race.

There were 3,434 households out of which 29.80% had children under the age of 18 living with them, 48.60% were married couples living together, 10.70% had a female householder with no husband present, and 36.80% were non-families. 29.50% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.06.

In the county, the population was spread out with 26.90% under the age of 18, 8.20% from 18 to 24, 27.90% from 25 to 44, 24.50% from 45 to 64, and 12.50% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 96.30 males. For every 100 females age 18 and over, there were 95.10 males.

The median income for a household in the county was $32,387, and the median income for a family was $39,095. Males had a median income of $31,000 versus $21,769 for females. The per capita income for the county was $17,356. About 10.90% of families and 14.80% of the population were below the poverty line, including 21.20% of those under age 18 and 8.40% of those age 65 or over.


The Denver Museum of Natural History opened a small Cedar Mountain Formation quarry that has produced diverse dinosaur fossils including theropods and ornithopods of varying states of growth. An adult and juvenile sauropod were also recovered from the quarry. The adult was designated the type specimen of the genus Venenosaurus.




Grand County Utah incorporated and unincorporated areas
Map of Grand County communities

Unincorporated places

Ghost town

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