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 2026-27 school year, there are 10 public schools serving 4,296 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 37% (versus the California public school average of 35%), 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
10,323 Schools
# Students
4,296 Students
5,788,587 Students
# Teachers
194 Teachers
267,491 Teachers
Student-Teacher Ratio
22:1
22:1
Student By Grade
District Rank
Charter Oak Unified School District, which is ranked #607 of all 1,903 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%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
38%
34%
Showing 2013–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
49%
47%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
24%
29%
Graduation Rate
95%
86.2%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(2022-23)28.4%
27.7%
Students by Ethnicity:
Diversity Score
0.42
0.63
Showing 2014–2023. Full 36-year historical data available below ↓
% American Indian
n/a
1%
Showing 2002–2020. Full 30-year historical data available below ↓
% Asian
7%
12%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hispanic
75%
56%
Showing 2014–2023. Full 36-year historical data available below ↓
% Black
3%
5%
Showing 2014–2023. Full 36-year historical data available below ↓
% White
12%
20%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hawaiian
n/a
n/a
% Two or more races
3%
6%
Showing 2014–2023. Full 15-year historical data available below ↓
All Ethnic Groups
District Revenue and Spending
The revenue/student of $22,423 in this school district is less than the state median of $26,022. The school district revenue/student has grown by 16% over four school years.
The school district's spending/student of $19,868 is less than the state median of $22,604. The school district spending/student has grown by 12% over four school years.
Total Revenue
$96 MM
$150,628 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Spending
$85 MM
$130,845 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Revenue / Student
$22,423
$26,022
Showing 2014–2023. Full 34-year historical data available below ↓
Spending / Student
$19,868
$22,604
Showing 2014–2023. Full 34-year historical data available below ↓
Best Charter Oak Unified School District Public Schools (2026-27)
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 | 421 students Student-teacher ratio: 23:1 Minority enrollment: 84%
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 | 388 students Student-teacher ratio: 23:1 Minority enrollment: 84%
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 | 610 students Student-teacher ratio: 21:1 Minority enrollment: 88%
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 | 1 student Student-teacher ratio: 1:1
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 | 1,259 students Student-teacher ratio: 22:1 Minority enrollment: 89%
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 | 569 students Student-teacher ratio: 25:1 Minority enrollment: 91%
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 | 442 students Student-teacher ratio: 22:1 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 | 428 students Student-teacher ratio: 21:1 Minority enrollment: 87%
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 | 107 students Student-teacher ratio: 36:1 Minority enrollment: 86%
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 | 71 students Student-teacher ratio: 14:1 Minority enrollment: 91%
Frequently Asked Questions
How many schools belong to Charter Oak Unified School District?
Charter Oak Unified School District manages 10 public schools serving 4,296 students.
What is the rank of Charter Oak Unified School District?
Charter Oak Unified School District is ranked #607 out of 1,903 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?
75% of Charter Oak Unified School District students are Hispanic, 12% of students are White, 7% of students are Asian, 3% of students are Black, and 3% of students are Two or more races.
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 $19,868 is less than the state median of $22,604. The school district spending/student has grown by 12% over four school years.
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