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Charter Oak High

High School
Composite Score
out of 100
State Percentile
of high schools
State Rank
of 1,739 California high schools

School overview

Enrollment
1,299 students
Student-Teacher Ratio
22:1
Free/Reduced Lunch
69%
Teachers
58 full-time

College & career readiness

Graduation Rate
98.1%
AP Exam Prepared
12.3%
A-G Completion
55.0%
College-Going Rate
73.3%

Data source: California Department of Education — ACGR, CCI, CGR reports

Dashboard indicators

ELA Year-over-Year
Maintained
-1.4 pts DFS change
Math Year-over-Year
Increased
+8.6 pts DFS change
EL Proficiency (ELPAC)
14.1%
English learners at Level 4 (Well Developed) · 66 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic73.4%
White12.0%
Asian3.9%
Black3.7%
Other7.0%

Performance breakdown

Performance breakdown for Charter Oak High
CategoryPercentage
Exceeded Standard17.9%
Met Standard25.8%
Below Standard56.4%

What other rankings don't show you

Most rating sites report "44% proficient" for Charter Oak High and stop there. Here's what that number hides:

17.9% of students exceeded standard while 25.8% merely met it. That exceeded rate is 2.4 points above the state average of 15.5%. That's near the Charter Oak Unified district average of 18.0%. Compared to the 9 nearby schools within ~3 miles, this exceeded rate is 2.4 points higher (vs 15.4% average). The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

The graduation rate is 98.1% — above the state target. 55.0% of students complete A-G requirements for UC/CSU eligibility — a strong college readiness signal. 73.3% of graduates go on to college within a year.

Chronic absenteeism is 16.7%, better than the state average of 34.0%.

Why the exceeded vs. met split matters →

Key metrics

% Exceeded Standard
17.9%
Students scoring above proficient
% Met or Above
43.6%
Students meeting standard
Chronic Absenteeism
16.7%
Students missing 10%+ of days
Suspension Rate
1.4%
Students suspended at least once
Total Tested
594
Across all grades & subjects

ELA scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
11th29725.9%34.7%21.9%17.5%60.6%

Math scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
11th2979.8%16.8%23.2%50.2%26.6%
K-12 Feeder PathBoundary data

Feeder patterns derived from 2015-16 NCES attendance boundary data. Boundaries may have changed. Contact your school district for current information.

Data source: California Department of Education (2025 test year) · How we score