CaliforniaSchoolsLos Osos High

Los Osos High

PublicRegularGrades 912
Rancho Cucamonga, California · Chaffey Joint Union High
SCHOOL SNAPSHOT
Students2,759
Student:Teacher25.8:1
Free/Reduced Lunch44%
Title INo
State accountability — CA Dashboard · 2024
CA School Dashboard 2024: Yellow
elpiYellow
mathYellow
college careerGreen
elaBlue
graduationBlue
Math Proficient
2024
52%
US avg ~36%
English / ELA Proficient
2024
72%
US avg ~46%
Math Advanced
2024
0.0%
ELA Advanced
2024
0.0%
Science Proficient
2024
N/A
Students Tested (Math)
2024
N/A
State Rating
2024
N/A
Yellow
Years of Test Data
2
2021–2024
Math proficiency trend ↓

Math proficiency over time

35.0%40.0%45.0%50.0%55.0%52.0%20212024Los Osos HighUS avg 36%

Proficiency rates averaged across tested grades. Ratings sourced from state DOE accountability systems (CA Dashboard, TX TEA A-F, FL School Grades, NY ESSA, IL Report Card, WA OSPI).

Advanced courses

Course enrolments reported to the US Department of Education Civil Rights Data Collection.

Geometry
765
Algebra II
749
Advanced Math
415
Calculus
31
Biology
1,718
Chemistry
412
Physics
193