Blue Valley is an unincorporated community and a census-designated place (CDP) located in Clear Creek County, Colorado, United States. The population was 173 at the 2020 census. The CDP is a part of the DenverâÂÂAuroraâÂÂLakewood, CO Metropolitan Statistical Area. Blue Valley has never had a post office, but the Idaho Springs post office (Zip Code 80452) serves the area.
At the 2020 United States Census, the Blue Valley CDP had an area of , all land.
The United States Census Bureau defined the for the