Enrollment
1,375
California · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 060187603939 Charter school
Charter School of San Diego — San Diego, CA
Federal NCES profile for Charter School of San Diego, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 11/100.
👥 Class size 0
🌟 Gifted program 30
🎓 Counselors 14
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Charter School of San Diego District · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
30.8:1
vs 21.6:1 California avg
+43% 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
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Charter School of San Diego reports 1,375 enrolled students to the National Center for Education Statistics (NCES) alongside 46.0 full-time-equivalent teachers, producing a 30.8:1 student-teacher ratio. That figure sits 43% above the California state mean of 21.6:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 94% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 65.0% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 17% above the California average and 25% above the national baseline. Counselor coverage works out to roughly 430 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 44.1% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Charter School of San Diego District spends $16,393 per pupil district-wide, below the California average of $18,039 and below the national average of $19,490. Revenue comes 58.4% from local sources (property taxes), 31.4% from the state, and 10.2% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 11/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Charter School of San Diego compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 30.8:1 | ▲ 43% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 65.0% | ▲ 17% | 55.5% | 51.8% |
| Enrollment | 1,375 | top 93% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
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
30.8:1
students per teacher
— 43% above state mean
Top 98% in California — lower ratio than 2% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
44.1%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$16,393
per pupil, district-wide
— below California avg of $18,039
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
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
Enrollment 1,375 Top 93% in California — larger than 7% of 10,006 state schools
Teachers (FTE) 46.0
Students per teacher 30.8:1 +43% vs state
Free-lunch eligible 65.0% +17% vs state
NCES ID 060187603939
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.
Programs & staff
AP courses offered 8
Counselors (FTE) 3.2
Students per counselor 430:1
Discipline & special education
Chronically absent 44.1%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for Charter School of San Diego District, which includes Charter School of San Diego.
$16,393
Per student
-9%
vs California
Avg $18,039
-16%
vs U.S.
Avg $19,490
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 20.2:1 students per teacher
Logan Memorial Educational Campus
Standard public school
1,467 students 20.7:1 students per teacher
San Diego Scpa
Standard public school
1,297 students 23.2:1 students per teacher
Gompers Preparatory Academy
Standard public school
1,175 students 31.2:1 students per teacher
Launch Virtual Academy
Alternative education program
578 students 18:1 students per teacher
San Diego County Community
Alternative education program
510 students 10.2:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 other 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 30.8:1, which is 43% higher than the California average of 21.6:1 and 94% higher than the national average of 15.9:1.
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%. The school serves a diverse student body in San Diego, CA.
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 (F) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.