San Carlos High School was a high school operated by the Sequoia Union High School District in San Carlos, California, United States, from 1960 until 1982. Originally founded due to increasing enrollment across Belmont, San Carlos, and Redwood City, by 1982, the high school suffered from low enrollment due to racial protests between local students and students bused in from East Palo Alto, which led the district to close the site. The campus was demolished in 1988, and is today the site of Highlands Park and a subdivision of luxury homes in the San Carlos hills.