San Lorenzo High School, also known as "SLz", is a public high school located in Ashland, California, and is part of the San Lorenzo Unified School District. The school's student body reflects the diversity of its surrounding and nearby communities, namely San Lorenzo, San Leandro, Hayward, and Oakland. As of the 2018-2019 school year, the student demographics are, Hispanic-Latino (62%), followed by Asian (15%), Black (14%), non-Hispanic White (5%), Pacific Islander (2%), American Indian or Alaska Native (less than 1%), and two or more races (2%).