Enrollment
1,259
California · 2024-25 NCES data
High school (grades 9-12) · Covina, CA
Charter Oak High
Federal NCES profile for Charter Oak High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060819000801
👥 S:T ratio 13
📚 AP courses 25
🌟 Gifted program 70
🎓 Counselors 16
📋 Attendance 52
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Charter Oak High earns 35/100 on the Resource Investment Index, with class sizes near the California median.
- #2 of 5
- high schools in Covina · Resource Index
- 35
- Resource Index · Typical
- 21.7:1
- students per teacher
- 48.2%
- free-lunch eligible
Charter Oak High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Charter Oak High ranks #2 of 5 high schools in Covina, CA.
School address
District: Charter Oak Unified · California
NCES ID 060819000801 Verify on NCES CCD record →
Teachers (FTE)
58.0
Federal CCD staff survey
Students per teacher
21.7:1
vs 21.5:1 California avg
+1% vs state
Free-lunch eligible
48.2%
vs 55.5% California avg
-13% vs state
Student-teacher ratio in context
How Charter Oak High compares with California and U.S. medians
What stands out at Charter Oak High
Charter Oak High is a large high school in Covina, California, enrolling 1,259 students.
At 21.7:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 48.2% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 92% of state schools at 1,259 students.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 532 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #85.
Its student body is led by Hispanic or Latino (75%) and White (11%) (diversity index 41/100).
On the academic-pipeline side it reports 5 Advanced Placement courses.
Counselor access is stretched at roughly 420 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 19.1% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 16.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Covina's high schools, it stands alongside Gladstone High (1,326 students): Charter Oak High is smaller than that campus by headcount and runs leaner classes (21.7:1 vs 36.8:1).
Charter Oak Unified also operates Royal Oak Middle (610 students) and Cedargrove Elementary (569 students) alongside Charter Oak High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Charter Oak High compares
Charter Oak High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.7:1 | ▲ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 48.2% | ▼ 13% | 55.5% | 51.7% |
| Enrollment | 1,259 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.7:1
Leaner classes than 11% of US schools, heavier class loads than most.
1,259
Bigger than 94% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
48.2%
free-lunch eligible
- 13% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21.7:1
students per teacher
- 1% above state mean
Top 50% in California - lower ratio than 50% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
19.1%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$15,505
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors3.0 FTE
Per 420 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 75.3%
White 11.4%
Asian 7.5%
African American 3.1%
Two or More 2.3%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 75.3% of enrollment.
Student-body diversity index 41.3/100
Simpson diversity index - at 41.3, Charter Oak High is less mixed than the California school average of 46.0.
Programs
AP courses offered 5
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Charter Oak Unified, which includes Charter Oak High.
$15,505
Per student
-6%
vs California
Avg $16,509
-7%
vs U.S.
Avg $16,593
Revenue mix
Local 28.2%
State 55.5%
Federal 16.3%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Charter Oak High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Royal Oak Middle | Smaller | Similar economic need | Lower S:T ratio |
| Cedargrove Elementary | Smaller | Higher economic need | Higher S:T ratio |
| Badillo Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Glen Oak Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Washington Elementary | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Charter Oak High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 610
- Students per teacher
- 19.7:1
- Resource Index
- 35/100
- Enrollment
- 569
- Students per teacher
- 24.7:1
- Resource Index
- 27/100
- Enrollment
- 442
- Students per teacher
- 22.1:1
- Resource Index
- 38/100
- Enrollment
- 428
- Students per teacher
- 22.5:1
- Resource Index
- 23/100
- Enrollment
- 421
- Students per teacher
- 28.1:1
- Resource Index
- 38/100
Similar high schools in Covina
4 comparable high schools (grades 9-12) serving the same city.
Gladstone High
Standard public school
1,326 students 36.8:1 students per teacher
Northview High
Standard public school
1,247 students 26.5:1 students per teacher
Covina High
Standard public school
1,056 students 22.5:1 students per teacher
Fairvalley High (Continuation)
Alternative education program
115 students 8.2:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,259 students)
Similar student-teacher ratio (~21.7:1)
Next steps
Verify locally before acting on Charter Oak High's federal record.
- Compare Charter Oak High against another school. Compare schools
- Charter Oak Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Charter Oak High
How many students attend Charter Oak High?
Charter Oak High has 1,259 students enrolled. It is a high school in Covina, CA.
What is the student-teacher ratio at Charter Oak High?
The student-teacher ratio at Charter Oak High is 21.7:1, which is 1% higher than the California average of 21.5:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Charter Oak High?
48.2% of students at Charter Oak High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Charter Oak High?
The largest demographic group at Charter Oak High is Hispanic or Latino at 75.3% of enrollment, in Covina, CA.
What is the Resource Investment Index for Charter Oak High?
Charter Oak High has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Charter Oak High rank among high schools in Covina?
By Resource Investment Index, Charter Oak High ranks #2 of 5 high schools in Covina, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Covina on the city page.
Is Charter Oak High a good school?
Charter Oak High earns 35/100 on the Resource Investment Index, with class sizes near the California median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Charter Oak Unified?
Besides Charter Oak High, Charter Oak Unified also operates Royal Oak Middle (610 students), Cedargrove Elementary (569 students), and Badillo Elementary (442 students). See the Charter Oak Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.