Overview
Los Osos High is a public high serving grades 9–12 in Rancho Cucamonga, California. The school enrolls 2,759 students. It is part of the Chaffey Joint Union High district.
Source: NCES CCD (2023)
Strengths & Things to Consider
Indicators pulled from NCES CCD and benchmarked against California state averages. This is not a ranking — different families value different things.
Things to Consider
Higher-than-average student-to-teacher ratio
25.1:1 — larger classes than typical
Very large student body
2,759 students — some students report feeling anonymous in very large high schools
No official school website listed in our source data
This is a data-completeness gap, not a reflection of the school
Key Facts
SectorPublic
School TypeRegular
LevelHigh
Grade Span9–12
DistrictChaffey Joint Union High
County6071
CityRancho Cucamonga
ZIP91737
CharterNo
MagnetNo
Title INo
NCES School ID060816010605
Student Demographics
Total Enrollment2,759
Race/ethnicity breakdown will appear here once state-level demographic data is ingested. Check back soon.
Source: NCES CCD (2023)
Equity & Title I
In the United States, Free/Reduced Lunch (FRL) eligibility is the primary federal proxy for student poverty. Schools with 40% or more FRL-eligible students typically qualify for Title I school-wide programs.
FRL %34%
State Avg64%
Title INo
Source: NCES CCD (2023)