Summary:
Zip code 91737 in Rancho Cucamonga, California, is served by one high school, Los Osos High, a comprehensive school serving grades 9-12 within the Chaffey Joint Union High district.
Los Osos High is a consistently high-performing school, maintaining a 5-star rating and ranking in the top 10% of all California high schools. It stands out for its exceptional 96.3% graduation rate, which is well above both district and state averages. The school shows particular strength in English Language Arts, where nearly 80% of students are proficient, significantly outperforming comparison averages.
While the school excels in graduation and English, proficiency rates in mathematics and science, though solid, are more moderate and present an area for potential growth. The school's performance is notable given that over 40% of students are eligible for free or reduced-price lunch. A point of concern is the chronic absenteeism rate of 25%, which is higher than the state average. Overall, Los Osos High is a flagship school in its district, providing strong academic outcomes for its community.
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