| Official Name: | Bonanza Mountain Estates, Colorado |
| Settlement Type: | Census Designated Place |
| Pushpin Map: | USA |
| Pushpin Label: | Bonanza Mountain Estates |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of the Bonanza Mountain Estates CDP in the United States |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Boulder County |
| Government Type: | unincorporated community |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.436 |
| Area Land Km2: | 0.436 |
| Area Water Km2: | 0.000 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 127 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | MST |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Coordinates: | 39.9769°N -105.4794°W |
| Elevation Ft: | 8449 |
| Postal Code Type: | ZIP Code[3] |
| Postal Code: | Nederland 80466 |
| Area Codes: | 303 & 720 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2583214 |
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.[3]
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 0.436km2, all land.[4]
The United States Census Bureau initially defined the for the