| Official Name: | Bar-K Ranch, Colorado |
| Settlement Type: | Census Designated Place |
| Pushpin Map: | USA |
| Pushpin Label: | Bark Ranch |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of the Bark Ranch 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: | 2.257 |
| Area Land Km2: | 2.232 |
| Area Water Km2: | 0.025 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 202 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | MST |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Coordinates: | 40.1211°N -105.4397°W |
| Elevation Ft: | 8583 |
| Postal Code Type: | ZIP Code[3] |
| Postal Code: | Ward 80481 |
| Area Codes: | 303 & 720 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2583210 |
Bark Ranch is an unincorporated community and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The Bark Ranch CDP encompasses the Bar-K Ranch housing community. The CDP is a part of the Boulder, CO Metropolitan Statistical Area. The population of the Bark Ranch CDP was 202 at the United States Census 2020. The Ward post office (Zip Code 80481) serves the area.[3]
Bar-K Ranch is located in west central Boulder County in the Front Range of the Colorado Rocky Mountains. It is situated on a ridge west of Jamestown and south of South St. Vrain Creek. Overland Road forms the northern edge of the community, leading east to Jamestown and Altona and west to State Highway 72, the Peak to Peak Highway.
The Bark Ranch CDP has an area of 2.257km2, including 0.025km2 of water.[1]
The United States Census Bureau initially defined the for the