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Charter Oak Unified School District

20240 E. 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 2025 school year, there are 10 public schools serving 4,235 students in Charter Oak Unified School District. This district's average testing ranking is 7/10, which is in the top 50% of public schools in California.
Public Schools in Charter Oak Unified School District have an average math proficiency score of 36% (versus the California public school average of 33%), and reading proficiency score of 50% (versus the 47% statewide average).
Minority enrollment is 88% of the student body (majority Hispanic), which is more than the California public school average of 80% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
10 Schools
10,369 Schools
# Students
4,235 Students
5,826,838 Students
# Teachers
191 Teachers
268,018 Teachers
Student : Teacher Ratio
22:1
22:1

Student By Grade

District Rank

Charter Oak Unified School District, which is ranked #624 of all 1,925 school districts in California (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 97% has increased from 93% over five school years.
This School District
State Average (CA)
#641 out of 1941 school districts
(Top 50%)
36%
33%
49%
47%
24%
29%
97%
87%

Students by Ethnicity:

0.43
0.63
% American Indian
1%
1%
% Asian
7%
12%
% Hispanic
74%
56%
% Black
3%
5%
% White
12%
20%
% Hawaiian
n/a
n/a
% Two or more races
3%
6%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,544 in this school district is less than the state median of $19,974. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $15,883 is less than the state median of $18,396. 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
$19,974
Spending / Student
$15,883
$18,396

Best Charter Oak Unified School District Public Schools (2025)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Washington Elementary School
(Math: 50-54% | Reading: 65-69%)
Rank:
9/
10
Top 20%
325 West Gladstone
Glendora, CA 91740
(626) 914-2704
Grades: K-6
| 392 students
Rank: #22.
Willow Elementary School
(Math: 50-54% | Reading: 55-59%)
Rank:
8/
10
Top 30%
1427 South Willow
Glendora, CA 91740
(626) 914-5839
Grades: K-6
| 356 students
Rank: #33.
Royal Oak Middle School
(Math: 42% | Reading: 51%)
Rank:
7/
10
Top 50%
303 South Glendora Ave.
Covina, CA 91724
(626) 967-6354
Grades: 7-8
| 607 students
Rank: #44.
Bridges Community Day
Alternative School
(Math: <50% | Reading: <50% )
Rank:
7/
10
Top 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Grades: 7-12
| 14 students
Rank: #55.
Cedargrove Elementary School
(Math: 36% | Reading: 47%)
Rank:
7/
10
Top 50%
1209 North Glendora Ave.
Covina, CA 91724
(626) 966-8675
Grades: K-6
| 568 students
Rank: #66.
Charter Oak High School
Charter School
(Math: 25% | Reading: 56%)
Rank:
6/
10
Top 50%
1430 East Covina Blvd.
Covina, CA 91724
(626) 915-5841
Grades: 9-12
| 1,299 students
Rank: #77.
Glen Oak Elementary School
(Math: 30-34% | Reading: 35-39%)
Rank:
6/
10
Top 50%
1000 North Sunflower Ave.
Covina, CA 91724
(626) 331-5341
Grades: K-6
| 392 students
Rank: #88.
Oak Knoll Alternative
Alternative School
(Math: 20-24% | Reading: 45-49%)
Rank:
5/
10
Bottom 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 852-7972
Grades: K-12
| 112 students
Rank: #99.
Badillo Elementary School
(Math: 29% | Reading: 39%)
Rank:
5/
10
Bottom 50%
1771 East Old Badillo Ave.
Covina, CA 91724
(626) 966-1753
Grades: K-6
| 418 students
Rank: #1010.
Arrow High (Continuation School)
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
2/
10
Bottom 50%
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Grades: 9-12
| 77 students

Frequently Asked Questions

How many schools belong to Charter Oak Unified School District?
Charter Oak Unified School District manages 10 public schools serving 4,235 students.
What is the rank of Charter Oak Unified School District?
Charter Oak Unified School District is ranked #624 out of 1,925 school districts in California (top 50%) based off of combined math and reading proficiency testing data for the 2021-2022 school year. This district ranks in the top 20% of California school districts for: Highest graduation rate (Top 5%) and Largest student body (number of students) (Top 1%)
What is the racial composition of students in Charter Oak Unified School District?
74% of Charter Oak Unified School District students are Hispanic, 12% of students are White, 7% of students are Asian, 3% of students are Black, 3% of students are Two or more races, and 1% of students are American Indian.
What is the student/teacher ratio of Charter Oak Unified School District?
Charter Oak Unified School District has a student/teacher ratio of 22:1, which is equal to the California state average of 22:1.
What is Charter Oak Unified School District's spending/student ratio?
The school district's spending/student of $15,883 is less than the state median of $18,396. The school district spending/student has stayed relatively flat over four school years.

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Quick Stats (2025)

  • District size: 10 schools
  • Grades: KG-12
  • Enrollment: 4,235 students
  • Student:Teacher Ratio: 22:1
  • Minority Enrollment: 88%
  • : 97% (Top 5% in CA)
  • : Top 50%
  • : 36% (Top 50%)
  • : 49% (Top 50%)
  • : 24% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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