Sierra Ridge, Colorado

Sierra Ridge is an unincorporated community and a census-designated place (CDP) located in and governed by Douglas County, Colorado, United States. The population was 3,490 at the 2020 census. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The unincorporated community lies in ZIP Code 80134.

Geography
The Sierra Ridge CDP has an area of 1.311 km2, all land.

Demographics
The United States Census Bureau defined the Sierra Ridge CDP for the United States Census 2020.

Education
The Douglas County School District RE-1 serves Sierra Ridge.