Lowest Student–Teacher Ratio in Mt. Diablo Unified (2025)
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Ranked by the Success Index (US) from official American data; 44 schools in Mt. Diablo Unified, California. Rank positions shown on each profile are within United States and California.
- 118Ygnacio Valley HighConcord · Public HighStudents per teacher: 19.3
- 236Concord HighConcord · Public HighStudents per teacher: 19.6
- 319Mt. Diablo HighConcord · Public HighStudents per teacher: 20.0
- 424Westwood ElementaryConcord · Public ElementaryStudents per teacher: 20.4
- 522Wren Avenue ElementaryConcord · Public ElementaryStudents per teacher: 20.5
- 69Oak Grove MiddleConcord · Public MiddleStudents per teacher: 20.6
- 710Riverview MiddleBay Point · Public MiddleStudents per teacher: 21.3
- 842Pine Hollow MiddleConcord · Public MiddleStudents per teacher: 21.5
- 98Shore Acres ElementaryBay Point · Public ElementaryStudents per teacher: 22.1
- 1012Ygnacio Valley ElementaryConcord · Public ElementaryStudents per teacher: 22.8
- 1160College Park HighPleasant Hill · Public HighStudents per teacher: 22.9
- 1215Fair Oaks ElementaryPleasant Hill · Public ElementaryStudents per teacher: 23.1
- 1326El Monte ElementaryConcord · Public ElementaryStudents per teacher: 23.2
- 1472Northgate HighWalnut Creek · Public HighStudents per teacher: 23.4
- 1566Diablo View MiddleClayton · Public MiddleStudents per teacher: 23.4
- 1650Pleasant Hill MiddlePleasant Hill · Public MiddleStudents per teacher: 23.8
- 1714Rio Vista ElementaryBay Point · Public ElementaryStudents per teacher: 23.9
- 1812El Dorado MiddleConcord · Public MiddleStudents per teacher: 23.9
- 1939Mountain View ElementaryConcord · Public ElementaryStudents per teacher: 24.3
- 2053Ayers ElementaryConcord · Public ElementaryStudents per teacher: 24.6
- 216Cambridge ElementaryConcord · Public ElementaryStudents per teacher: 24.7
- 2248Valley View MiddlePleasant Hill · Public MiddleStudents per teacher: 24.8
- 2356Silverwood ElementaryConcord · Public ElementaryStudents per teacher: 25.2
- 2438Gregory Gardens ElementaryPleasant Hill · Public ElementaryStudents per teacher: 25.6
- 2579Foothill MiddleWalnut Creek · Public MiddleStudents per teacher: 25.8
- 2655Sequoia MiddlePleasant Hill · Public MiddleStudents per teacher: 25.9
- 2715Sun Terrace ElementaryConcord · Public ElementaryStudents per teacher: 26.1
- 2844Woodside ElementaryConcord · Public ElementaryStudents per teacher: 26.3
- 2920Holbrook Language AcademyConcord · Public ElementaryStudents per teacher: 26.4
- 3049Hidden Valley ElementaryMartinez · Public ElementaryStudents per teacher: 26.8
- 3167Bancroft ElementaryWalnut Creek · Public ElementaryStudents per teacher: 26.9
- 3259Highlands ElementaryConcord · Public ElementaryStudents per teacher: 26.9
- 3369Strandwood ElementaryPleasant Hill · Public ElementaryStudents per teacher: 27.1
- 3430Delta View ElementaryPittsburg · Public ElementaryStudents per teacher: 27.3
- 359Bel Air ElementaryBay Point · Public ElementaryStudents per teacher: 27.3
- 3672Valhalla ElementaryPleasant Hill · Public ElementaryStudents per teacher: 27.7
- 3711Meadow Homes ElementaryConcord · Public ElementaryStudents per teacher: 28.2
- 3871Sequoia ElementaryPleasant Hill · Public ElementaryStudents per teacher: 28.3
- 3959Pleasant Hill ElementaryPleasant Hill · Public ElementaryStudents per teacher: 28.3
- 4075Walnut Acres ElementaryWalnut Creek · Public ElementaryStudents per teacher: 28.7
- 4162Monte Gardens ElementaryConcord · Public ElementaryStudents per teacher: 29.6
- 4268Eagle Peak MontessoriWalnut Creek · Charter ElementaryStudents per teacher: 30.1
- 4372Valle Verde ElementaryWalnut Creek · Public ElementaryStudents per teacher: 30.3
- 4471Mt. Diablo ElementaryClayton · Public ElementaryStudents per teacher: 30.8
| # | School | Sector | Students per teacher | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|---|
| 1 | Ygnacio Valley High Concord · High · Grades 9–12 | Public | 19.3 | 17.5 Lower 50% | 13% Math proficiency | 1,059 |
| 2 | Concord High Concord · High · Grades 9–12 | Public | 19.6 | 36.0 Lower 50% | 29% Math proficiency | 1,137 |
| 3 | Mt. Diablo High Concord · High · Grades 9–12 | Public | 20.0 | 18.5 Lower 50% | 15% Math proficiency | 1,397 |
| 4 | Westwood Elementary Concord · Elementary · Grades K–5 | Public | 20.4 | 24.3 Lower 50% | 22% Math proficiency | 224 |
| 5 | Wren Avenue Elementary Concord · Elementary · Grades K–5 | Public | 20.5 | 21.8 Lower 50% | 22% Math proficiency | 349 |
| 6 | Oak Grove Middle Concord · Middle · Grades 6–8 | Public | 20.6 | 8.6 Lower 50% | 8% Math proficiency | 681 |
| 7 | Riverview Middle Bay Point · Middle · Grades 6–8 | Public | 21.3 | 9.5 Lower 50% | 10% Math proficiency | 682 |
| 8 | Pine Hollow Middle Concord · Middle · Grades 6–8 | Public | 21.5 | 41.6 Lower 50% | 39% Math proficiency | 538 |
| 9 | Shore Acres Elementary Bay Point · Elementary · Grades K–5 | Public | 22.1 | 8.3 Lower 50% | 11% Math proficiency | 398 |
| 10 | Ygnacio Valley Elementary Concord · Elementary · Grades K–5 | Public | 22.8 | 12.3 Lower 50% | 21% Math proficiency | 387 |
| 11 | College Park High Pleasant Hill · High · Grades 9–12 | Public | 22.9 | 60.0 Top 50% | 48% Math proficiency | 1,948 |
| 12 | Fair Oaks Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 23.1 | 14.7 Lower 50% | 17% Math proficiency | 323 |
| 13 | El Monte Elementary Concord · Elementary · Grades K–5 | Public | 23.2 | 25.9 Lower 50% | 27% Math proficiency | 418 |
| 14 | Northgate High Walnut Creek · High · Grades 9–12 | Public | 23.4 | 72.4 Top 25% | 63% Math proficiency | 1,546 |
| 15 | Diablo View Middle Clayton · Middle · Grades 6–8 | Public | 23.4 | 66.1 Top 50% | 49% Math proficiency | 514 |
| 16 | Pleasant Hill Middle Pleasant Hill · Middle · Grades 6–8 | Public | 23.8 | 50.0 Top 50% | 42% Math proficiency | 738 |
| 17 | Rio Vista Elementary Bay Point · Elementary · Grades K–5 | Public | 23.9 | 14.2 Lower 50% | 18% Math proficiency | 431 |
| 18 | El Dorado Middle Concord · Middle · Grades 6–8 | Public | 23.9 | 11.5 Lower 50% | 12% Math proficiency | 861 |
| 19 | Mountain View Elementary Concord · Elementary · Grades K–5 | Public | 24.3 | 38.6 Lower 50% | 37% Math proficiency | 267 |
| 20 | Ayers Elementary Concord · Elementary · Grades K–5 | Public | 24.6 | 53.4 Top 50% | 50% Math proficiency | 394 |
| 21 | Cambridge Elementary Concord · Elementary · Grades K–5 | Public | 24.7 | 5.9 Lower 50% | 13% Math proficiency | 469 |
| 22 | Valley View Middle Pleasant Hill · Middle · Grades 6–8 | Public | 24.8 | 47.9 Lower 50% | 42% Math proficiency | 819 |
| 23 | Silverwood Elementary Concord · Elementary · Grades K–5 | Public | 25.2 | 55.7 Top 50% | 57% Math proficiency | 530 |
| 24 | Gregory Gardens Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 25.6 | 37.7 Lower 50% | 32% Math proficiency | 409 |
| 25 | Foothill Middle Walnut Creek · Middle · Grades 6–8 | Public | 25.8 | 78.6 Top 25% | 68% Math proficiency | 1,005 |
| 26 | Sequoia Middle Pleasant Hill · Middle · Grades 6–8 | Public | 25.9 | 55.4 Top 50% | 48% Math proficiency | 882 |
| 27 | Sun Terrace Elementary Concord · Elementary · Grades K–5 | Public | 26.1 | 14.8 Lower 50% | 19% Math proficiency | 418 |
| 28 | Woodside Elementary Concord · Elementary · Grades K–5 | Public | 26.3 | 44.3 Lower 50% | 47% Math proficiency | 289 |
| 29 | Holbrook Language Academy Concord · Elementary · Grades K–8 | Public | 26.4 | 20.4 Lower 50% | 32% Math proficiency | 501 |
| 30 | Hidden Valley Elementary Martinez · Elementary · Grades K–5 | Public | 26.8 | 49.2 Lower 50% | 51% Math proficiency | 831 |
| 31 | Bancroft Elementary Walnut Creek · Elementary · Grades K–5 | Public | 26.9 | 66.8 Top 50% | 61% Math proficiency | 672 |
| 32 | Highlands Elementary Concord · Elementary · Grades K–5 | Public | 26.9 | 58.9 Top 50% | 54% Math proficiency | 512 |
| 33 | Strandwood Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 27.1 | 69.1 Top 25% | 62% Math proficiency | 596 |
| 34 | Delta View Elementary Pittsburg · Elementary · Grades K–5 | Public | 27.3 | 29.9 Lower 50% | 35% Math proficiency | 656 |
| 35 | Bel Air Elementary Bay Point · Elementary · Grades K–5 | Public | 27.3 | 9.0 Lower 50% | 11% Math proficiency | 328 |
| 36 | Valhalla Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 27.7 | 72.4 Top 25% | 68% Math proficiency | 721 |
| 37 | Meadow Homes Elementary Concord · Elementary · Grades K–5 | Public | 28.2 | 11.3 Lower 50% | 22% Math proficiency | 732 |
| 38 | Sequoia Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 28.3 | 71.1 Top 25% | 67% Math proficiency | 594 |
| 39 | Pleasant Hill Elementary Pleasant Hill · Elementary · Grades K–5 | Public | 28.3 | 58.7 Top 50% | 55% Math proficiency | 652 |
| 40 | Walnut Acres Elementary Walnut Creek · Elementary · Grades K–5 | Public | 28.7 | 75.0 Top 25% | 67% Math proficiency | 689 |
| 41 | Monte Gardens Elementary Concord · Elementary · Grades K–5 | Public | 29.6 | 62.2 Top 50% | 58% Math proficiency | 562 |
| 42 | Eagle Peak Montessori Walnut Creek · Elementary · Grades 1–8 | Charter | 30.1 | 67.7 Top 50% | 52% Math proficiency | 301 |
| 43 | Valle Verde Elementary Walnut Creek · Elementary · Grades K–5 | Public | 30.3 | 72.3 Top 25% | 70% Math proficiency | 485 |
| 44 | Mt. Diablo Elementary Clayton · Elementary · Grades K–5 | Public | 30.8 | 70.8 Top 25% | 63% Math proficiency | 739 |
Ygnacio Valley High in Concord leads the 2025 list of lowest student–teacher ratio in Mt. Diablo Unified with Students per teacher 19.3. Of the 44 schools shown, 43 are public, 1 are charter.
For the full picture see the wider California lowest student–teacher ratio 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 ratio school in Mt. Diablo Unified?
Ygnacio Valley High in Concord, California ranks first among lowest student–teacher ratio in Mt. Diablo Unified with Students per teacher 19.3 (Enrollment: 1,059).
How are lowest student–teacher ratio in Mt. Diablo Unified ranked?
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.
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.