Enrollment
1,890
California · 2024-25 NCES data
High school (grades 9-12) · Visalia, CA
El Diamante High
Federal NCES profile for El Diamante High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 064116010703
👥 S:T ratio 15
📚 AP courses 65
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 12
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
El Diamante High earns 24/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #7 of 7
- high schools in Visalia · Resource Index
- 24
- Resource Index · Lower
- 21.2:1
- students per teacher
- 51.4%
- free-lunch eligible
El Diamante High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, El Diamante High ranks #7 of 7 high schools in Visalia, CA.
School address
District: Visalia Unified · California
NCES ID 064116010703 Verify on NCES CCD record →
Teachers (FTE)
89.0
Federal CCD staff survey
Students per teacher
21.2:1
vs 21.5:1 California avg
-1% vs state
Free-lunch eligible
51.4%
vs 55.5% California avg
-7% vs state
Student-teacher ratio in context
How El Diamante High compares with California and U.S. medians
What stands out at El Diamante High
El Diamante High is a higher-need, large high school in Visalia, California, enrolling 1,890 students.
At 21.2:1, 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.
Its free-meal eligibility rate of 51.4% 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 96% of state schools at 1,890 students.
Its Resource Investment Index trails 93% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 311 similarly sized, similarly resourced-need California schools statewide, it ranks #300, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (72%) and White (17%) (diversity index 45/100).
On the academic-pipeline side it reports 13 Advanced Placement courses.
Counselor access is stretched at roughly 1890 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 35.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 8 expulsions at this campus for 2021-22.
Among Visalia's high schools, it stands alongside Redwood High (2,490 students): El Diamante High is smaller than that campus by headcount and runs leaner classes (21.2:1 vs 24.2:1).
Visalia Unified also operates Redwood High (2,490 students) and Golden West High (2,059 students) alongside El Diamante 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 El Diamante High compares
El Diamante 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 | 21.2:1 | ▼ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 51.4% | ▼ 7% | 55.5% | 51.7% |
| Enrollment | 1,890 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.2:1
Leaner classes than 12% of US schools, heavier class loads than most.
1,890
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
51.4%
free-lunch eligible
- 7% 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
21.2:1
students per teacher
- 1% below state mean
Top 45% in California - lower ratio than 55% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
35.3%
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
$14,150
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
Counselors1.0 FTE
Per 1890 students, the combined health-and-guidance staffing load for this school.
Discipline context
19
in-school suspensions + 145 out-of-school
Suspension rate: 1.0 per 100 students. Combined in-school and out-of-school rate: 8.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 8 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 72.2%
White 17.0%
Two or More 4.8%
Asian 4.4%
African American 1.1%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 72.2% of enrollment.
Student-body diversity index 44.5/100
Simpson diversity index - at 44.5, El Diamante High is about as mixed as the California school average of 46.0.
Programs
AP courses offered 13
Funding & spending
District-wide per-pupil expenditure for Visalia Unified, which includes El Diamante High.
$14,150
Per student
-14%
vs California
Avg $16,509
-15%
vs U.S.
Avg $16,593
Revenue mix
Local 18.1%
State 69.0%
Federal 12.9%
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 El Diamante High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Redwood High | Larger | Lower economic need | Higher S:T ratio |
| Golden West High | Similar size | Higher economic need | Similar S:T ratio |
| Mt. Whitney High | Similar size | Higher economic need | Similar S:T ratio |
| Ridgeview Middle | Smaller | Similar economic need | Higher S:T ratio |
| Valley Oak Middle | Smaller | Higher economic need | Higher S:T ratio |
Comparisons are relative to El Diamante High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,490
- Students per teacher
- 24.2:1
- Resource Index
- 22/100
- Enrollment
- 2,059
- Students per teacher
- 22.4:1
- Resource Index
- 22/100
- Enrollment
- 1,637
- Students per teacher
- 21:1
- Resource Index
- 20/100
- Enrollment
- 975
- Students per teacher
- 28.7:1
- Resource Index
- 16/100
- Enrollment
- 952
- Students per teacher
- 23.8:1
- Resource Index
- 11/100
Similar high schools in Visalia
6 comparable high schools (grades 9-12) serving the same city.
Redwood High
Standard public school
2,490 students 24.2:1 students per teacher
Golden West High
Standard public school
2,059 students 22.4:1 students per teacher
Mt. Whitney High
Standard public school
1,637 students 21:1 students per teacher
Sequoia High
Alternative education program
280 students 14.7:1 students per teacher
University Preparatory High
Standard public school
253 students 28.1:1 students per teacher
Visalia Technical Early College
Standard public school
216 students 15.4:1 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 (~1,890 students)
Next steps
Verify locally before acting on El Diamante High's federal record.
- Compare El Diamante High against another school. Compare schools
- Visalia 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 El Diamante High
How many students attend El Diamante High?
El Diamante High has 1,890 students enrolled. It is a high school in Visalia, CA.
What is the student-teacher ratio at El Diamante High?
The student-teacher ratio at El Diamante High is 21.2:1, which is 1% lower than the California average of 21.5:1 and 35% 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 El Diamante High?
51.4% of students at El Diamante High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of El Diamante High?
The largest demographic group at El Diamante High is Hispanic or Latino at 72.2% of enrollment, in Visalia, CA.
What is the Resource Investment Index for El Diamante High?
El Diamante High has a Resource Investment Index of 24/100 (lower 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 El Diamante High rank among high schools in Visalia?
By Resource Investment Index, El Diamante High ranks #7 of 7 high schools in Visalia, 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 Visalia on the city page.
Is El Diamante High a good school?
El Diamante High earns 24/100 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 Visalia Unified?
Besides El Diamante High, Visalia Unified also operates Redwood High (2,490 students), Golden West High (2,059 students), and Mt. Whitney High (1,637 students). See the Visalia 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.