📍 6001 Milliken Ave., Rancho Cucamonga, San Bernardino County, 91737
Los Osos High is a State/Public serving high age pupils, located in Rancho Cucamonga, San Bernardino County. The school has 2,837 pupils enrolled. The Principal is Eric Cypher. It is part of the Chaffey Joint Union High school district. It serves grades 9–12 in a suburban setting. The school employs 114.5 full-time-equivalent teachers, a student-teacher ratio of 24.8:1.
Los Osos High enrolls 2,837 students across grades 9–12. The student body is 51% male and 49% female. A teaching staff of 114.5 full-time-equivalent teachers supports the school, giving a student-teacher ratio of 24.8:1.
By race and ethnicity, the student body is 39% Hispanic or Latino, 28% White and 22% Asian.
| Race / ethnicity | Students | Share |
|---|---|---|
| Hispanic or Latino | 1,117 | 39% |
| White | 794 | 28% |
| Asian | 632 | 22% |
| Black or African American | 178 | 6.3% |
| Two or more races | 96 | 3.4% |
| American Indian or Alaska Native | 13 | <1% |
| Native Hawaiian or Pacific Islander | 6 | <1% |
Source: NCES Common Core of Data.
822 of the school's 2,837 students (29%) qualify for free or reduced-price lunch. Free and reduced-price lunch eligibility is a widely used indicator of the share of students from lower-income households.
Los Osos High is located in a suburban setting (NCES locale: Suburb, Large). Virtual instruction: Supplemental Virtual.
Los Osos High is one of 11 schools in Chaffey Joint Union High, based in Ontario, California. The district serves 22,116 students district-wide and employs 952 full-time-equivalent teachers. With 2,837 students, Los Osos High is larger than the district average of about 2,011 students per school.