Clear Creek County is one of the 64 counties of the U.S. state of Colorado. As of the 2010 census, the population was 9,088. The county seat is Georgetown.
According to the U.S. Census Bureau, the county has a total area of 396 square miles (1,030 km), of which 395 square miles (1,020 km) is land and 1.3 square miles (3.4 km) (0.3%) is water.
As of the census of 2000, there were 9,322 people, 4,019 households, and 2,608 families residing in the county. The population density was 24 people per square mile (9/km²). There were 5,128 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 96.37% White, 0.28% Black or African American, 0.73% Native American, 0.36% Asian, 0.03% Pacific Islander, 1.02% from other races, and 1.20% from two or more races. 3.87% of the population were Hispanic or Latino of any race.
There were 4,019 households out of which 28.20% had children under the age of 18 living with them, 54.60% were married couples living together, 6.90% had a female householder with no husband present, and 35.10% were non-families. 27.20% of all households were made up of individuals and 4.30% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.81.
In the county, the population was spread out with 22.60% under the age of 18, 5.60% from 18 to 24, 32.60% from 25 to 44, 32.20% from 45 to 64, and 7.10% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 108.80 males. For every 100 females age 18 and over, there were 110.20 males.
The median income for a household in the county was $50,997, and the median income for a family was $61,400. Males had a median income of $41,667 versus $30,757 for females. The per capita income for the county was $28,160. About 3.00% of families and 5.40% of the population were below the poverty line, including 6.80% of those under age 18 and 5.60% of those age 65 or over.