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Email BoardConcord High
4200 Concord Boulevard, Concord, CA 94521-1059
Summary
Concord High is underperforming.
Reading and math results average to the 37th percentile among comparable California schools.
Only 40.1% of students met California's reading standard, and it is slowly trending down.
Math is weaker: 16.6% of students met California's math standard, it is holding steady.
Proficiency stats
| Current Reading Proficiency | 40.1% |
| Current Math Proficiency | 16.6% |
| Reading State Rank | 1,056/1,596 (34th percentile) |
| Math State Rank | 940/1,596 (41st percentile) |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 1,137 |
| Low-Income Students | 794 (69.8%) |
| English Learners | 215 (18.9%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 3.1 points from last year and fell 4.8 points over the full period. Math fell 0.4 points from last year and was unchanged over the full period.
•Math 0.0 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Filipino students have the strongest results.
Distribution of Scores by Grade
40.1% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank No. 1,056 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 13.2-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It held steady over the period shown.
•English Learners vs English Native
2.6% of English learners meet the reading standard, compared with 48.0% of English-only students. The gap narrowed as English-learner results fell and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 36% proficiency. The other reported groups range from about 7% to 14%.
Distribution of Scores by Grade
16.6% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank No. 940 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 18.8-point math income gap is slightly wider than the 14.2-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
7.7% of English learners meet the math standard, compared with 21.3% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•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 Concord High compare within the district?
Concord High is No. 3 in reading and No. 4 in math proficiency among the 5 9–12 schools in Mt. Diablo Unified with 2026 results.
Explore the district’s schoolsHow does Concord High rank in California?
Concord High ranks No. 1,056 of 1,596 in reading and No. 940 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 Concord High compare within the district?
Low-income students here rank No. 3 in reading and No. 5 in math among 5 9–12 district schools with reportable 2026 results for this group. 36.8% meet the reading standard and 12.0% meet the math standard.
See results by student groupHow does Concord High compare with other schools in Concord?
Concord High is No. 2 in reading and No. 3 in math proficiency among the 4 9–12 schools in Concord with 2026 results.
Explore schools in ConcordHow does Concord High compare with other schools in Contra Costa County?
Concord High is No. 22 in reading and No. 26 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 |
|---|---|---|
| Concord HighThis school | 16.6% | 40.1% |
| Mt. Diablo High | 12.3% | 29.9% |
| Ygnacio Valley High | 17.3% | 37.4% |
