Westcreek is an unincorporated community and census-designated place (CDP) in Douglas County, Colorado, United States. The population was 129 at the 2010 census.
Westcreek is located in southwestern Douglas County at 39°8′47″N 105°9′22″W / 39.14639°N 105.15611°W / 39.14639; -105.15611 (39.146474, -105.156187). It is in the valley of West Creek, a north-flowing tributary of Horse Creek and part of the South Platte River watershed.
Colorado State Highway 67 passes through the community, leading north down the West Creek/Horse Creek valley 9 miles (14 km) to Deckers and southeast 15 miles (24 km) to Woodland Park.
According to the United States Census Bureau, the Westcreek CDP has a total area of 1.3 square miles (3.3 km), of which 0.04 square miles (0.1 km), or 3.30%, is water.
As of the census of 2000, there were 105 people, 44 households, and 33 families residing in the CDP. The population density was 28.2 people per square mile (10.9/km²). There were 62 housing units at an average density of 16.7 per square mile (6.4/km²). The racial makeup of the CDP was 96.19% White, 0.95% African American, 1.90% from other races, and 0.95% from two or more races. Hispanic or Latino of any race were 1.90% of the population.
There were 44 households out of which 25.0% had children under the age of 18 living with them, 61.4% were married couples living together, 6.8% had a female householder with no husband present, and 25.0% were non-families. 15.9% of all households were made up of individuals and 4.5% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.55.
In the CDP, the population was spread out with 16.2% under the age of 18, 7.6% from 18 to 24, 22.9% from 25 to 44, 44.8% from 45 to 64, and 8.6% who were 65 years of age or older. The median age was 47 years. For every 100 females, there were 123.4 males. For every 100 females age 18 and over, there were 125.6 males.
The median income for a household in the CDP was $71,042, and the median income for a family was $71,042. Males had a median income of $37,222 versus $36,250 for females. The per capita income for the CDP was $20,238. None of the population and none of the families were below the poverty line.