|Rating||9 out of 10|
|Grades||9 to 12th grade|
|School District||Chaffey Joint Union High|
|Location||6001 Milliken Ave.
Rancho Cucamonga, CA 91737
Los Osos High has an academic rating significantly above the average for California high schools based on its high test performance and high AP course participation. It is ranked 122nd in the best public high schools in California.
The Los Osos High student body is predominantly White with a significant Hispanic population and has very high racial diversity.
|Native American Indian||0.4%||14|
|Hawaiian Pacific Inlander||0.6%||18|
|Two or more races||1.6%||50|
18.1% percent of the school's students are eligible for free lunch under the National School Lunch Program compared to the California high school median of 48.5%. By this measure, Los Osos High students are largely upper income and rank 197th in California for high school student family income.
Students at Los Osos High scored an average 62% of students proficient for math and reading as tested by the California Department of Education. Performance is well above the state high school median of 42% proficiency and places the school's test performance in the top 14.9% of California high schools.
|Gender||Math Proficient||Reading Proficient|
|Subgroup||Math Proficient||Reading Proficient|
|Asian & Pacific Islander||80% to 84%*||80% to 84%*|
|Black||35% to 39%*||65% to 69%*|
|Hispanic||40% to 44%*||60% to 64%*|
|Multiracial||50% or more*||50% or more*|
|White||50% to 54%*||75% to 79%*|
|With Disabilites||10% or less*||20% to 29%*|
|Limited English||less than 50%*||less than 50%*|
*Indicates statistic has been anonymized to protect student privacy.
The average SAT score for Los Osos High students in 2016 was 1131.
705 out of 1,590 junior and senior of students took either the ACT or SAT test (44%). College admission testing participation is well above the California median rate of 25% and in the top 16% for participation.
Los Osos High offers 22 AP courses. 29 percent of grade nine through twelve students are enrolled in at least one AP class. The AP participation rate is in the 76% percentile and well above the median AP enrollment rate for all California schools of 21%. Los Osos High had 501 taking AP exams with a 334 passing at least one exam. The AP pass rate is in the 67% percentile and somewhat above the state median of 55 percent.
|AP Test Pass Rate||67%||55%|
|Students enrolled in an AP class||29%||21%|
|AP Math Enrollment Rate||5%|
|AP Science Enrollment Rate||8%|
|AP Other Enrollment Rate||28%|
|AP Courses Offered||22|
|Overall Chronic Absenteeism Rate||9%||14%|
|Female Chronic Absenteeism Rate||10%|
|Male Chronic Absenteeism Rate||8%|
Los Osos High
6001 Milliken Ave.
Rancho Cucamonga, CA
Chaffey Joint Union High