Enrollment
1,375
California · 2024-25 NCES data
Other / mixed grade configuration · San Diego, CA
Charter School of San Diego
Federal NCES profile for Charter School of San Diego, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 11/100.
2024-25 NCES dataOther / mixed grade configurationNCES 060187603939Charter school
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 14
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Charter School of San Diego earns 11/100 on the Resource Investment Index, with class sizes larger than 96% of California schools.
- #27 of 27
- schools in San Diego · Resource Index
- 11
- Resource Index · Lower
- 29.9:1
- large classes for California
- 65.0%
- free-lunch eligible
Charter School of San Diego has class sizes larger than 96% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Charter School of San Diego ranks #27 of 27 schools in San Diego, CA.
School address
District: Charter School of San Diego District · California
NCES ID 060187603939 Verify on NCES CCD record →
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
29.9:1
vs 21.5:1 California avg
+39% vs state
Free-lunch eligible
65.0%
vs 55.5% California avg
+17% vs state
Student-teacher ratio in context
How Charter School of San Diego compares with California and U.S. medians
What stands out at Charter School of San Diego
Charter School of San Diego is a higher-need, large charter combined-grade school in San Diego, California, enrolling 1,375 students.
Class loads run heavy: 29.9:1 is larger than about 96% of California schools and 39% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 65.0% lands close to the California typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in California, bigger than 93% of state schools at 1,375 students.
Its Resource Investment Index trails 96% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 469 similarly sized, similarly resourced-need California schools statewide, it ranks #445, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (59%) and White (22%) (diversity index 59/100).
Counselor access is stretched at roughly 430 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 44.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among San Diego's public schools, it stands alongside The O'farrell Charter (1,862 students): Charter School of San Diego is smaller than that campus by headcount and runs heavier classes (29.9:1 vs 20.7:1).
Charter School of San Diego District is a single-school charter district, so Charter School of San Diego operates independently rather than alongside district-mates.
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 School of San Diego compares
Charter School of San Diego on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 29.9:1 | ▲ 39% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 65.0% | ▲ 17% | 55.5% | 51.7% |
| Enrollment | 1,375 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
29.9:1
Leaner classes than 2% of US schools, heavier class loads than most.
1,375
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
65.0%
free-lunch eligible
- 17% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
29.9:1
students per teacher
- 39% above state mean
Top 96% in California - lower ratio than 4% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
44.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,980
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.2 FTE
Per 430 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 59.3%
White 22.2%
African American 7.8%
Two or More 7.0%
Asian 2.9%
American Indian / Alaska Native 0.7%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 59.3% of enrollment.
Student-body diversity index 58.7/100
Simpson diversity index - at 58.7, Charter School of San Diego is more mixed than the California school average of 46.0.
Programs
AP courses offered 8
Funding & spending
District-wide per-pupil expenditure for Charter School of San Diego District, which includes Charter School of San Diego.
$15,980
Per student
-3%
vs California
Avg $16,509
-4%
vs U.S.
Avg $16,593
Revenue mix
Local 58.4%
State 31.4%
Federal 10.2%
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.
Similar other schools in San Diego
6 comparable other schools (grades Mixed) serving the same city.
The O'farrell Charter
Standard public school
1,862 students 20.7:1 students per teacher
Logan Memorial Educational Campus
Standard public school
1,467 students 29.3:1 students per teacher
San Diego Scpa
Standard public school
1,297 students 24.5:1 students per teacher
Gompers Preparatory Academy
Standard public school
1,175 students 28.7:1 students per teacher
Launch Virtual Academy
Alternative education program
578 students 18.1:1 students per teacher
San Diego County Community
Alternative education program
510 students 11.9:1 students per teacher
Similar other 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 (~1,375 students)
Next steps
Verify locally before acting on Charter School of San Diego's federal record.
- Compare Charter School of San Diego against another school. Compare schools
- Charter School of San Diego District'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 School of San Diego
How many students attend Charter School of San Diego?
Charter School of San Diego has 1,375 students enrolled. It is a public school in San Diego, CA.
What is the student-teacher ratio at Charter School of San Diego?
The student-teacher ratio at Charter School of San Diego is 29.9:1, which is 39% higher than the California average of 21.5:1 and 90% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Charter School of San Diego?
65.0% of students at Charter School of San Diego are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Charter School of San Diego?
The largest demographic group at Charter School of San Diego is Hispanic or Latino at 59.3% of enrollment, in San Diego, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.7/100.
What is the Resource Investment Index for Charter School of San Diego?
Charter School of San Diego has a Resource Investment Index of 11/100 (lower reported resources relative to schools nationally) based on 4 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 School of San Diego rank among schools in San Diego?
By Resource Investment Index, Charter School of San Diego ranks #27 of 27 schools in San Diego, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in San Diego on the city page.
Is Charter School of San Diego a good school?
Charter School of San Diego earns 11/100 on the Resource Investment Index, with class sizes larger than 96% of California schools. 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 School of San Diego District?
None; Charter School of San Diego District is a single-school charter district, and Charter School of San Diego is its only campus.
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.