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Email BoardYgnacio Valley High
755 Oak Grove Road, Concord, CA 94518-2899
Summary
Ygnacio Valley High is badly underperforming.
Reading and math results average to the 37th percentile among comparable California schools.
Only 37.4% of students met California's reading standard, and it is trending down slightly.
Math is weaker: 17.3% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 37.4% |
| Current Math Proficiency | 17.3% |
| Reading State Rank | 1,100/1,596 (31st percentile) |
| Math State Rank | 910/1,596 (43rd percentile) |
School information
| Student / Teacher Ratio | 19:1 |
| Student enrollment (2024–25) | 1,059 |
| Low-Income Students | 863 (81.5%) |
| English Learners | 353 (33.3%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 8.2 points from last year and fell 1.7 points over the full period. Math rose 5.5 points from last year and rose 9.2 points over the full period.
•Math +9.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Two or more races students have the strongest results.
Distribution of Scores by Grade
37.4% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank No. 1,100 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.4-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It narrowed over the period shown.
•English Learners vs English Native
6.3% of English learners meet the reading standard, compared with 64.7% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 54% proficiency. The other reported groups range from about 12% to 25%.
Distribution of Scores by Grade
17.3% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank No. 910 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 10.0-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It widened slightly over the period shown.
•English Learners vs English Native
6.3% of English learners meet the math standard, compared with 38.5% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Ygnacio Valley High compare within the district?
Ygnacio Valley High is No. 4 in reading and No. 3 in math proficiency among the 5 9–12 schools in Mt. Diablo Unified with 2026 results.
Explore the district’s schoolsHow does Ygnacio Valley High rank in California?
Ygnacio Valley High ranks No. 1,100 of 1,596 in reading and No. 910 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Ygnacio Valley High compare within the district?
Low-income students here rank No. 4 in reading and No. 3 in math among 5 9–12 district schools with reportable 2026 results for this group. 35.6% meet the reading standard and 15.7% meet the math standard.
See results by student groupHow does Ygnacio Valley High compare with other schools in Concord?
Ygnacio Valley High is No. 3 in reading and No. 2 in math proficiency among the 4 9–12 schools in Concord with 2026 results.
Explore schools in ConcordHow does Ygnacio Valley High compare with other schools in Contra Costa County?
Ygnacio Valley High is No. 25 in reading and No. 24 in math proficiency among the 31 9–12 schools in Contra Costa County with 2026 results.
Explore schools in Contra Costa CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Ygnacio Valley HighThis school | 17.3% | 37.4% |
| Concord High | 16.6% | 40.1% |
| Mt. Diablo High | 12.3% | 29.9% |
