Enrollment
1,059
California · 2024-25 NCES data
High school (grades 9-12) · Concord, CA
Ygnacio Valley High
Federal NCES profile for Ygnacio Valley High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 062637003986
👥 S:T ratio 30
📚 AP courses 5
🌟 Gifted program 30
🎓 Counselors 29
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ygnacio Valley High earns 22/100 on the Resource Investment Index, even as it posts class sizes smaller than 82% of California schools.
- #4 of 5
- high schools in Concord · Resource Index
- 22
- Resource Index · Lower
- 17.4:1
- small classes for California
- 71.4%
- free-lunch eligible
Ygnacio Valley High has class sizes smaller than 82% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ygnacio Valley High ranks #4 of 5 high schools in Concord, CA.
School address
District: Mt. Diablo Unified · California
NCES ID 062637003986 Verify on NCES CCD record →
Teachers (FTE)
61.0
Federal CCD staff survey
Students per teacher
17.4:1
vs 21.5:1 California avg
-19% vs state
Free-lunch eligible
71.4%
vs 55.5% California avg
+29% vs state
Student-teacher ratio in context
How Ygnacio Valley High compares with California and U.S. medians
What stands out at Ygnacio Valley High
Ygnacio Valley High is a higher-need, large high school in Concord, California, enrolling 1,059 students.
Class sizes run a bit leaner than typical: 17.4:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 71.4% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 90% of state schools at 1,059 students.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 836 statewide peers matched on enrollment and economic need, it ranks mid-pack at #362.
Its student body is led by Hispanic or Latino (78%) and Asian (8%) (diversity index 38/100).
On the academic-pipeline side it reports 1 Advanced Placement course.
Counselor availability sits well past the ASCA benchmark, roughly 353 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 34.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Concord's high schools, it stands alongside Clayton Valley Charter High (2,373 students): Ygnacio Valley High is smaller than that campus by headcount and runs leaner classes (17.4:1 vs 25.2:1).
Mt. Diablo Unified also operates College Park High (1,948 students) and Northgate High (1,546 students) alongside Ygnacio Valley 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 Ygnacio Valley High compares
Ygnacio Valley 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 | 17.4:1 | ▼ 19% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 71.4% | ▲ 29% | 55.5% | 51.7% |
| Enrollment | 1,059 | top 10% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.4:1
Leaner classes than 28% of US schools, heavier class loads than most.
1,059
Bigger than 92% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
71.4%
free-lunch eligible
- 29% 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
17.4:1
students per teacher
- 19% below state mean
Top 18% in California - lower ratio than 82% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
34.7%
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
$13,649
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 353 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 90 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 9.0 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 78.2%
Asian 8.0%
White 4.9%
Two or More 4.8%
African American 3.2%
Native Hawaiian / Pacific Islander 0.8%
Largest group: Hispanic or Latino at 78.2% of enrollment.
Student-body diversity index 37.6/100
Simpson diversity index - at 37.6, Ygnacio Valley High is less mixed than the California school average of 46.0.
Programs
AP courses offered 1
Funding & spending
District-wide per-pupil expenditure for Mt. Diablo Unified, which includes Ygnacio Valley High.
$13,649
Per student
-17%
vs California
Avg $16,509
-18%
vs U.S.
Avg $16,593
Revenue mix
Local 46.6%
State 43.9%
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 Ygnacio Valley High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| College Park High | Larger | Lower economic need | Higher S:T ratio |
| Northgate High | Larger | Lower economic need | Higher S:T ratio |
| Mt. Diablo High | Larger | Lower economic need | Similar S:T ratio |
| Concord High | Similar size | Lower economic need | Similar S:T ratio |
| Foothill Middle | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Ygnacio Valley High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,948
- Students per teacher
- 25:1
- Resource Index
- 21/100
- Enrollment
- 1,546
- Students per teacher
- 24.9:1
- Resource Index
- 23/100
- Enrollment
- 1,397
- Students per teacher
- 17.7:1
- Resource Index
- 22/100
- Enrollment
- 1,137
- Students per teacher
- 18.6:1
- Resource Index
- 27/100
- Enrollment
- 1,005
- Students per teacher
- 29.6:1
- Resource Index
- 28/100
Similar high schools in Concord
4 comparable high schools (grades 9-12) serving the same city.
Clayton Valley Charter High
Standard public school
2,373 students 25.2:1 students per teacher
Mt. Diablo High
Standard public school
1,397 students 17.7:1 students per teacher
Concord High
Standard public school
1,137 students 18.6:1 students per teacher
Olympic Continuation High
Alternative education program
233 students 12.9:1 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 (~1,059 students)
Similar student-teacher ratio (~17.4:1)
Next steps
Verify locally before acting on Ygnacio Valley High's federal record.
- Compare Ygnacio Valley High against another school. Compare schools
- Mt. Diablo 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 Ygnacio Valley High
How many students attend Ygnacio Valley High?
Ygnacio Valley High has 1,059 students enrolled. It is a high school in Concord, CA.
What is the student-teacher ratio at Ygnacio Valley High?
The student-teacher ratio at Ygnacio Valley High is 17.4:1, which is 19% lower than the California average of 21.5:1 and 11% 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 Ygnacio Valley High?
71.4% of students at Ygnacio Valley High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ygnacio Valley High?
The largest demographic group at Ygnacio Valley High is Hispanic or Latino at 78.2% of enrollment, in Concord, CA.
What is the Resource Investment Index for Ygnacio Valley High?
Ygnacio Valley High has a Resource Investment Index of 22/100 (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 Ygnacio Valley High rank among high schools in Concord?
By Resource Investment Index, Ygnacio Valley High ranks #4 of 5 high schools in Concord, 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 Concord on the city page.
Is Ygnacio Valley High a good school?
Ygnacio Valley High earns 22/100 on the Resource Investment Index, even as it posts class sizes smaller than 82% 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 Mt. Diablo Unified?
Besides Ygnacio Valley High, Mt. Diablo Unified also operates College Park High (1,948 students), Northgate High (1,546 students), and Mt. Diablo High (1,397 students). See the Mt. Diablo 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.