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.
ÎÛÎÛÂþ» Schools in Charter Oak Unified School District have an average math proficiency score of 37% (versus the California public school average of 34%), 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 #608 of all 1,910 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.
Overall District Rank
#587 out of 1932 school districts
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
38%
34%
Reading/Language Arts Test Scores (% Proficient)
49%
47%
Science Test Scores (% Proficient)
24%
29%
Graduation Rate
95%
87%
Students by Ethnicity:
Diversity Score
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.
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 ÎÛÎÛÂþ» Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Washington Elementary School
(Math: 50-54% | Reading: 65-69%)
Rank:
Rank:
9/
Top 20%10
325 West Gladstone
Glendora, CA 91740
(626) 914-2704
Glendora, CA 91740
(626) 914-2704
Gr: K-6 | 392 students Student-teacher ratio: 23:1 Minority enrollment: 82%
Rank: #22.
Willow Elementary School
(Math: 45-49% | Reading: 55-59%)
Rank:
Rank:
8/
Top 30%10
1427 South Willow
Glendora, CA 91740
(626) 914-5839
Glendora, CA 91740
(626) 914-5839
Gr: K-6 | 356 students Student-teacher ratio: 22:1 Minority enrollment: 82%
Rank: #33.
Royal Oak Middle School
(Math: 41% | Reading: 51%)
Rank:
Rank:
7/
Top 50%10
303 South Glendora Ave.
Covina, CA 91724
(626) 967-6354
Covina, CA 91724
(626) 967-6354
Gr: 7-8 | 607 students Student-teacher ratio: 22:1 Minority enrollment: 91%
Rank: #44.
Bridges Community Day
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
7/
Top 50%10
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Glendora, CA 91740
(626) 914-3961
Gr: 7-12 | 14 students Student-teacher ratio: 7:1 Minority enrollment: 86%
Rank: #55.
Charter Oak High School
Charter School
(Math: 30% | Reading: 56%)
Rank:
Rank:
7/
Top 50%10
1430 East Covina Blvd.
Covina, CA 91724
(626) 915-5841
Covina, CA 91724
(626) 915-5841
Gr: 9-12 | 1,299 student Student-teacher ratio: 22:1 Minority enrollment: 88%
Rank: #66.
Cedargrove Elementary School
(Math: 35% | Reading: 47%)
Rank:
Rank:
7/
Top 50%10
1209 North Glendora Ave.
Covina, CA 91724
(626) 966-8675
Covina, CA 91724
(626) 966-8675
Gr: K-6 | 568 students Student-teacher ratio: 25:1 Minority enrollment: 89%
Rank: #77.
Badillo Elementary School
(Math: 36% | Reading: 39%)
Rank:
Rank:
6/
Top 50%10
1771 East Old Badillo Ave.
Covina, CA 91724
(626) 966-1753
Covina, CA 91724
(626) 966-1753
Gr: K-6 | 418 students Student-teacher ratio: 23:1 Minority enrollment: 94%
Rank: #88.
Glen Oak Elementary School
(Math: 30% | Reading: 35-39%)
Rank:
Rank:
5/
Bottom 50%10
1000 North Sunflower Ave.
Covina, CA 91724
(626) 331-5341
Covina, CA 91724
(626) 331-5341
Gr: K-6 | 392 students Student-teacher ratio: 25:1 Minority enrollment: 88%
Rank: #99.
Oak Knoll Alternative
Alternative School
(Math: 10-14% | Reading: 45-49%)
Rank:
Rank:
4/
Bottom 50%10
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 852-7972
Glendora, CA 91740
(626) 852-7972
Gr: K-12 | 112 students Student-teacher ratio: 22:1 Minority enrollment: 80%
Rank: #1010.
Arrow High (Continuation School)
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
1505 South Sunflower Ave.
Glendora, CA 91740
(626) 914-3961
Glendora, CA 91740
(626) 914-3961
Gr: 9-12 | 77 students Student-teacher ratio: 11:1 Minority enrollment: 89%
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 #608 out of 1,910 school districts in California (top 50%) based off of combined math and reading proficiency testing data for the 2022-2023 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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