Enrollment
1,941
California · 2024-25 NCES data
High school (grades 9-12) · San Diego, CA
San Ysidro High
Federal NCES profile for San Ysidro High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063864010642
👥 S:T ratio 20
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 72
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
San Ysidro High earns 44/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #21 of 41
- high schools in San Diego · Resource Index
- 44
- Resource Index · Typical
- 20:1
- students per teacher
- 67.3%
- free-lunch eligible
San Ysidro High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, San Ysidro High ranks #21 of 41 high schools in San Diego, CA.
School address
District: Sweetwater Union High · California
NCES ID 063864010642 Verify on NCES CCD record →
Teachers (FTE)
97.0
Federal CCD staff survey
Students per teacher
20:1
vs 21.5:1 California avg
-7% vs state
Free-lunch eligible
67.3%
vs 55.5% California avg
+21% vs state
Student-teacher ratio in context
How San Ysidro High compares with California and U.S. medians
What stands out at San Ysidro High
San Ysidro High is a higher-need, large high school in San Diego, California, enrolling 1,941 students.
Class sizes run a bit leaner than typical: 20:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 67.3% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 97% of state schools at 1,941 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 310 statewide peers matched on enrollment and economic need, it ranks mid-pack at #157.
Its student body is predominantly Hispanic or Latino (90% of enrollment), among the less diverse in the state (diversity index 20/100).
On the academic-pipeline side it reports 24 Advanced Placement courses.
Counselor coverage is strong, about 141 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 46.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among San Diego's high schools, it stands alongside Del Norte High (2,557 students): San Ysidro High is smaller than that campus by headcount and runs leaner classes (20:1 vs 26.9:1).
Sweetwater Union High also operates Eastlake High (2,557 students) and Otay Ranch Senior High (2,440 students) alongside San Ysidro 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 San Ysidro High compares
San Ysidro 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 | 20:1 | ▼ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 67.3% | ▲ 21% | 55.5% | 51.7% |
| Enrollment | 1,941 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20:1
Leaner classes than 16% of US schools, heavier class loads than most.
1,941
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
67.3%
free-lunch eligible
- 21% 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
20:1
students per teacher
- 7% below state mean
Top 35% in California - lower ratio than 65% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
46.4%
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
$13,859
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
Counselors13.8 FTE
Per 141 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 43 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
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 89.5%
White 3.3%
Asian 2.9%
African American 2.2%
Two or More 1.8%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 89.5% of enrollment.
Student-body diversity index 19.6/100
Simpson diversity index - at 19.6, San Ysidro High is less mixed than the California school average of 46.0.
Programs
AP courses offered 24
Funding & spending
District-wide per-pupil expenditure for Sweetwater Union High, which includes San Ysidro High.
$13,859
Per student
-16%
vs California
Avg $16,509
-16%
vs U.S.
Avg $16,593
Revenue mix
Local 32.2%
State 58.4%
Federal 9.4%
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 San Ysidro High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Eastlake High | Larger | Lower economic need | Higher S:T ratio |
| Otay Ranch Senior High | Larger | Lower economic need | Higher S:T ratio |
| Sweetwater High | Similar size | Higher economic need | Similar S:T ratio |
| Olympian High | Similar size | Lower economic need | Higher S:T ratio |
| Bonita Vista Senior High | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to San Ysidro High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,557
- Students per teacher
- 23.2:1
- Resource Index
- 44/100
- Enrollment
- 2,440
- Students per teacher
- 24.2:1
- Resource Index
- 37/100
- Enrollment
- 2,290
- Students per teacher
- 21.2:1
- Resource Index
- 29/100
- Enrollment
- 2,289
- Students per teacher
- 24.1:1
- Resource Index
- 38/100
- Enrollment
- 1,960
- Students per teacher
- 21.5:1
- Resource Index
- 36/100
Similar high schools in San Diego
6 comparable high schools (grades 9-12) serving the same city.
Del Norte High
Standard public school
2,557 students 26.9:1 students per teacher
Torrey Pines High
Standard public school
2,536 students 24.9:1 students per teacher
Henry High
Standard public school
2,485 students 25.9:1 students per teacher
Rancho Bernardo High
Standard public school
2,210 students 24.8:1 students per teacher
Mira Mesa High
Standard public school
2,187 students 24.9:1 students per teacher
Canyon Crest Academy
Standard public school
2,147 students 25.3:1 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 (~1,941 students)
Similar student-teacher ratio (~20:1)
Next steps
Verify locally before acting on San Ysidro High's federal record.
- Compare San Ysidro High against another school. Compare schools
- Sweetwater Union High'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 San Ysidro High
How many students attend San Ysidro High?
San Ysidro High has 1,941 students enrolled. It is a high school in San Diego, CA.
What is the student-teacher ratio at San Ysidro High?
The student-teacher ratio at San Ysidro High is 20:1, which is 7% lower than the California average of 21.5:1 and 27% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at San Ysidro High?
67.3% of students at San Ysidro High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of San Ysidro High?
The largest demographic group at San Ysidro High is Hispanic or Latino at 89.5% of enrollment, in San Diego, CA.
What is the Resource Investment Index for San Ysidro High?
San Ysidro High has a Resource Investment Index of 44/100 (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 San Ysidro High rank among high schools in San Diego?
By Resource Investment Index, San Ysidro High ranks #21 of 41 high 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 high schools in San Diego on the city page.
Is San Ysidro High a good school?
San Ysidro High earns 44/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California. 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 Sweetwater Union High?
Besides San Ysidro High, Sweetwater Union High also operates Eastlake High (2,557 students), Otay Ranch Senior High (2,440 students), and Sweetwater High (2,290 students). See the Sweetwater Union High 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.