| Alta Sierra | |
| Settlement Type: | Unincorporated community Census-designated place |
| Pushpin Map: | California#USA |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in California |
| Pushpin Image: | California Locator Map with US.PNG |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Kern County |
| Coordinates: | 35.7292°N -118.5494°W |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 1.0 |
| Area Land Sq Mi: | 1.0 |
| Area Water Sq Mi: | 0 |
| Area Total Km2: | 2.6 |
| Area Land Km2: | 2.6 |
| Area Water Km2: | 0 |
| Elevation M: | 1743 |
| Elevation Ft: | 5718 |
| Population Footnotes: | [2] |
| Population As Of: | 2020 |
| Population Total: | 103 |
| Population Density Sq Mi: | auto |
Alta Sierra is an unincorporated community and census-designated place (CDP) in Kern County, California.
It is located 8.5miles east of Glennville, at an elevation of in the Greenhorn Mountains/Sierra Nevada foothills. For statistical purposes, the United States Census Bureau has defined Alta Sierra as a census-designated place (CDP).