Bonanza Mountain Estates, Colorado

Bonanza Mountain Estates is an unincorporated community and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The CDP is a part of the Boulder, CO Metropolitan Statistical Area. The population of the Bonanza Mountain Estates CDP was 127 at the United States Census 2020. The Nederland post office (Zip Code 80466) serves the area.

Geography
The CDP is a residential community located in southern Boulder County in the Front Range of the Colorado Rocky Mountains, just east of the town of Nederland. It is situated on a ridge between Middle Boulder Creek and North Boulder Creek. Ridge Road is the main street through the community, leading west to Nederland and east to St. Ann Highlands.

The Bonanza Mountain Estates CDP has an area of 0.436 km2, all land.

Demographics
The United States Census Bureau initially defined the Bonanza Mountain Estates CDP for the United States Census 2010.