Best high schools in Mt. Diablo Unified (2025)
Schools classified as high schools by NCES. Ranked by the Success Index (US) from official American data; 5 schools in Mt. Diablo Unified, California. Rank positions shown on each profile are within United States and California.
- Elementary Schools in Mt. Diablo Unified
- Middle Schools in Mt. Diablo Unified
- Traditional Public Schools in Mt. Diablo Unified
- Schools by Math Proficiency in Mt. Diablo Unified
- Schools by Reading Proficiency in Mt. Diablo Unified
- Lowest Student–Teacher Ratio in Mt. Diablo Unified
- Largest Schools in Mt. Diablo Unified
- 172Northgate HighWalnut Creek · Public High63% Math proficiency · 1,546 students
- 260College Park HighPleasant Hill · Public High48% Math proficiency · 1,948 students
- 336Concord HighConcord · Public High29% Math proficiency · 1,137 students
- 419Mt. Diablo HighConcord · Public High15% Math proficiency · 1,397 students
- 518Ygnacio Valley HighConcord · Public High13% Math proficiency · 1,059 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Northgate High Walnut Creek · High · Grades 9–12 | Public | 72.4 Top 25% | 63% Math proficiency | 1,546 |
| 2 | College Park High Pleasant Hill · High · Grades 9–12 | Public | 60.0 Top 50% | 48% Math proficiency | 1,948 |
| 3 | Concord High Concord · High · Grades 9–12 | Public | 36.0 Lower 50% | 29% Math proficiency | 1,137 |
| 4 | Mt. Diablo High Concord · High · Grades 9–12 | Public | 18.5 Lower 50% | 15% Math proficiency | 1,397 |
| 5 | Ygnacio Valley High Concord · High · Grades 9–12 | Public | 17.5 Lower 50% | 13% Math proficiency | 1,059 |
Northgate High in Walnut Creek leads the 2025 list of high schools in Mt. Diablo Unified with a Success Index (US) of 72.4. Of the 5 schools shown, 5 are public.
For the full picture see the wider California high schools rankings, every school on the Mt. Diablo Unified page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best high school in Mt. Diablo Unified?
Northgate High in Walnut Creek, California ranks first among high schools in Mt. Diablo Unified with a Success Index (US) of 72.4 out of 100 (Enrollment: 1,546).
How are high schools in Mt. Diablo Unified ranked?
Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.