Charter Oak Unified School District

20240 East Cienega Ave.
Covina, CA 91724-1227
(District boundaries shown in map)
7/
10
Top 50%

Top Rankings

Charter Oak Unified School District ranks among the top 20% of public school district in California for:

Category
Attribute
Graduation Rate
Highest graduation rate (Top 5%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2026 school year, there are 4 public high schools serving 1,502 students in Charter Oak Unified School District. This district's average high testing ranking is 7/10, which is in the top 50% of public high schools in California.
Public High Schools in Charter Oak Unified School District have an average math proficiency score of 25% (versus the California public high school average of 28%), and reading proficiency score of 51% (versus the 51% statewide average).
Public High School in Charter Oak Unified School District have a Graduation Rate of 94%, which is more than the California average of 86%.
The school with highest graduation rate is Charter Oak High School, with 96% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 87% of the student body (majority Hispanic), which is more than the California public high school average of 79% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
10 Schools
2,814 Schools
# Students
4,235 Students
2,138,919 Students
# Teachers
191 Teachers
100,723 Teachers
Student-Teacher Ratio
22:1
22:1

Student By Grade

District Rank

Charter Oak Unified School District, which is ranked #607 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has decreased from 96% over five school years.
This School District
State Average (CA)
#587 out of 1932 school districts
(Top 50%)
38%
34%
49%
47%
24%
29%
95%
87%

Students by Ethnicity:

0.43
0.63
% American Indian
1%
1%
% Asian
7%
11%
% Hispanic
74%
56%
% Black
3%
5%
% White
12%
22%
% Hawaiian
n/a
n/a
% Two or more races
3%
5%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,544 in this school district is less than the state median of $19,976. The school district revenue/student has grown by 11% over four school years.
The school district's spending/student of $15,883 is less than the state median of $18,397. The school district spending/student has stayed relatively flat over four school years.
This School District
This State (CA)
Total Revenue
$70 MM
$116,387 MM
Spending
$67 MM
$107,188 MM
Revenue / Student
$16,544
$19,976
Spending / Student
$15,883
$18,397

Best Charter Oak Unified School District Public High Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Bridges Community Day
Alternative School
(Math: <50% | Reading: <50% )
Rank:
7/
10
Top 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Gr: 7-12 | 14 students Student-teacher ratio: 7:1 Minority enrollment: 86%
Rank: #22.
Charter Oak High School
Charter School
(Math: 30% | Reading: 56%)
Rank:
7/
10
Top 50%
1430 East Covina Blvd.
Covina, CA 91724
(626) 915-5841
Gr: 9-12 | 1,299 student Student-teacher ratio: 22:1 Minority enrollment: 88%
Rank: #33.
Oak Knoll Alternative
Alternative School
(Math: 10-14% | Reading: 45-49%)
Rank:
4/
10
Bottom 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 852-7972
Gr: K-12 | 112 students Student-teacher ratio: 22:1 Minority enrollment: 80%
Rank: #44.
Arrow High (Continuation School)
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
1/
10
Bottom 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Gr: 9-12 | 77 students Student-teacher ratio: 11:1 Minority enrollment: 89%

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Quick Facts (2026)

  • District size: 10 schools
  • Grades: K-12
  • Enrollment: 4,235 students
  • Student-Teacher Ratio: 22:1
  • Minority Enrollment: 88%
  • : 95% (Top 5% in CA)
  • : Top 50%
  • : 38% (Top 30%)
  • : 49% (Top 50%)
  • : 24% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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