Very Good
#3030 of 9,533 schools in CA
Top 32% in state
Charter Oak High
High School · Charter Oak Unified
1430 East Covina Blvd., Covina, CA 91724
Enrollment
1,299
Student-Teacher
22.4:1
Score
7.1
Grades
9th – 12th
Enrollment
1,299
Student-Teacher
22.4:1
Score
7.1
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Covina
#5 of 25
public schools
California high schools
#558 of 1,892
In district
#3 of 9
Charter Oak Unified
Academic performance
7.6 / 10
Very strong
About Charter Oak High
Charter Oak High serves 1,299 students in grades 9-12 in Covina, California, operating as a regular public school in Los Angeles County. With 58 full-time equivalent teachers, the school maintains a student-teacher ratio of 22.4:1, providing a substantial high school environment for its diverse student body. Academically, Charter Oak High earns a 6.3 out of 10 rating from MySchoolScout and ranks in the 61st percentile among California high schools at #3690 out of 9,566 schools statewide.
Students show solid performance in English Language Arts, with 62% achieving proficiency or above across grade levels. Mathematics presents an area with significant room for growth, as 22% of students perform at proficient levels or higher. The school draws from a stable suburban community where families enjoy a median household income of $96,720 and median home values of $664,900.
About one-third of local residents hold bachelor's degrees or higher, while the poverty rate remains relatively low at 8.8% in the surrounding ZIP code of 28,575 residents. Charter Oak High is situated in Covina's large suburban setting, providing students with the resources and opportunities that come with being part of a well-established community in the San Gabriel Valley.
What Parents Should Know
The student-teacher ratio at Charter Oak High is 22.4:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
View breakdown
Charter Oak High — Students at Charter Oak High score 42% proficient, which is above what's typical for similar communities (expected: 36%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
68.8%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 8 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.1/10.
How Charter Oak High Compares
See how Charter Oak High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2020-21 · Source: CRDC via Urban Institute · Learn more
Performance Trends
Math proficiency has declined from 36% (2019) to 22.22% (2024). Reading/ELA proficiency has remained stable from 62% (2019) to 62.03% (2024).
Location
1430 East Covina Blvd., Covina, CA 91724
Nearby Alternatives
Families considering Charter Oak High may also want to explore other high schools in the area. Sierra High (rated 6.4/10, 1.8 miles away, in nearby Azusa), with a comparable rating. Another option is Whitcomb Continuation High (rated 5.9/10, 1.9 miles away, in nearby Glendora), a more accessible option. Additionally, Arrow High (Continuation) (rated 5.4/10, 1.2 miles away, in nearby Glendora), a more accessible option. For more schools in Covina, see our Covina schools guide .
Nearby Schools
20 within 2.0 mi| School | Distance | Rating |
|---|---|---|
| Cedargrove Elementary Covina | 0.2 mi | 4.7 |
| St. Louise de Marillac School Covina | 0.4 mi | — |
| ST LOUISE DE MARILLAC SCHOOL Covina | 0.5 mi | 5.5 |
| Sonrise Christian Covina | 0.6 mi | — |
| SONRISE CHRISTIAN SCHOOL Covina | 0.7 mi | 5.5 |
| Badillo Elementary Covina | 0.9 mi | 6.3 |
| Royal Oak Middle Covina | 1.0 mi | 7.2 |
| Glen Oak Elementary Covina | 0.9 mi | 6.7 |
| Ben Lomond Elementary Covina | 1.0 mi | 6.2 |
| Washington Elementary Glendora | 1.2 mi | 6.8 |
| Arrow High (Continuation) Glendora | 1.2 mi | 5.4 |
| Oak Knoll Alternative Glendora | 1.2 mi | 5.4 |
| Bridges Community Day Glendora | 1.2 mi | — |
| Sierra Vista Middle Covina | 1.3 mi | 6.4 |
| FOOTHILL CHRISTIAN SCHOOL Glendora | 1.6 mi | 6.4 |
| Willow Elementary Glendora | 1.6 mi | 8.8 |
| Whitcomb Continuation High Glendora | 1.9 mi | 5.9 |
| West Covina Hills Adventist School West Covina | 2.0 mi | — |
| Sierra High Azusa | 1.8 mi | 6.4 |
| WEST COVINA HILLS ADVENTIST SCHOOL West Covina | 2.0 mi | 5.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 91724 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$102,129
Median Home Value
$722,600
Median Rent
$2,056/mo
Population
28,113
College Educated
35.5%
Homeownership
68.4%
Avg Commute
31.7 min
Poverty Rate
7.9%
Median Age
39.1
Community Profile
The community surrounding Charter Oak High has a median household income of $102,129. It is an area where 36% of adults hold a bachelor's degree or higher. The median home value in the area is $722,600, with a median rent of $2,056/month. The local poverty rate of 7.9% is relatively low. The average commute for residents is 32 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Alliance Ouchi-O'Donovan 6-12 Complex Los Angeles, CA | 7.1 |
| Castle Park Senior High Chula Vista, CA | 7.1 |
| Desert Hot Springs High Desert Hot Springs, CA | 7.1 |
| Diamond Ranch High Pomona, CA | 7.1 |
| Don Antonio Lugo High Chino, CA | 7.1 |
| Encinal Junior/Senior High Alameda, CA | 7.1 |
Frequently Asked Questions
Common questions about Charter Oak High
What grades does Charter Oak High serve?
Charter Oak High serves students in grades 9th through 12th.
How many students attend Charter Oak High?
Charter Oak High has an enrollment of approximately 1,299 students.
What is the student-teacher ratio at Charter Oak High?
The student-teacher ratio at Charter Oak High is 22.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Charter Oak High rank in CA?
Charter Oak High is ranked #3030 out of 9,533 schools in CA.
What is Charter Oak High's MySchoolScout rating?
Charter Oak High has a composite rating of 7.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Charter Oak High?
Based on the most recent state assessment data, Charter Oak High has 31.6% math proficiency and 60.8% reading/ELA proficiency.
Is Charter Oak High a charter school?
No, Charter Oak High is not a charter school. It is a traditional public school operated by the local school district.
Is Charter Oak High a Title I school?
No, Charter Oak High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Charter Oak High?
68.8% of students at Charter Oak High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- Walk Score
- 43 Car-Dependent
- Transit Score
- 30 Some Transit
- Bike Score
- 55 Bikeable
- City Safety
- High (1,996/100K)
Powered by 
FBI UCR 2024. City-level (Covina). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,299
- Student-Teacher Ratio
- 22.4:1
- Teachers (FTE)
- 58
- Free/Reduced Lunch
- 68.8%
- Type
- regular
- Setting
- Large Suburb
- County
- Los Angeles County
- Phone
- (626) 915-5841
- Data Year
- 2023–2024
Resources & Links
District
Charter Oak Unified- District Enrollment
- 4,248
- Schools in District
- 10
- Per-Pupil Spending
- $17,633
- District Rank
- #3 of 9
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.