The smallest student-teacher ratios in California
Better student-teacher ratios don't always mean better schools. Here are the best district ratios in California.
Student-Teacher Ratio vs. Reading
The pattern is too thin to draw a strong conclusion.
Details: all districts with ratio data show correlations of N/A for reading and N/A for math. Among districts under 20:1, the correlations are N/A for reading and N/A for math.
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Large Districts with ratios under 20:1
The smallest student-teacher ratios among districts with at least 2,000 students.
San Bernardino County • Elementary | 17:1 | 36.1% | 25.4% | 2,357 |
County • | 17:1 | 33.3% | 19.6% | 3,243 |
San Mateo County • High | 17:1 | 68.1% | 51.3% | 9,408 |
Alameda County • Unified | 17:1 | 87.4% | 82.0% | 2,447 |
San Bernardino County • Unified | 17:1 | 42.7% | 30.4% | 2,183 |
Alameda County • Unified | 17:1 | 71.7% | 66.5% | 9,116 |
Kern County • Elementary | 17:1 | 30.8% | 23.8% | 2,490 |
Orange County • Unified | 17:1 | 78.3% | 73.3% | 2,279 |
San Diego County • Unified | 17:1 | 25.8% | 16.6% | 4,397 |
County • | 17:1 | 8.1% | 2.5% | 2,760 |
Sacramento County • Unified | 16:1 | 37.5% | 20.8% | 2,030 |
County • | 16:1 | 5.0% | 3.3% | 5,495 |
County • | 16:1 | 48.3% | 32.9% | 2,405 |
Marin County • Elementary | 16:1 | 81.9% | 78.0% | 2,309 |
County • | 16:1 | 32.2% | 12.7% | 6,321 |
San Mateo County • Elementary | 16:1 | 79.6% | 78.1% | 2,682 |
Santa Clara County • Unified | 16:1 | 81.3% | 79.7% | 10,187 |
County • | 15:1 | 2.4% | 3.0% | 2,404 |
County • | 15:1 | 7.1% | 2.0% | 3,369 |
County • | 15:1 | 5.8% | 0.8% | 4,278 |
Los Angeles County • Unified | 14:1 | 75.5% | 68.7% | 3,661 |
Monterey County • Unified | 14:1 | 72.4% | 63.9% | 2,152 |
Los Angeles County • Elementary | 14:1 | 23.7% | 14.9% | 3,225 |
County • | 12:1 | 39.6% | 24.4% | 3,660 |
San Diego County • Unified | 12:1 | 33.0% | 14.8% | 3,258 |
Medium Districts with ratios under 20:1
The smallest student-teacher ratios among districts with 1,000-1,999 students.
Tulare County • Elementary | 17:1 | 27.8% | 15.2% | 1,383 |
Mendocino County • Unified | 17:1 | 29.8% | 19.3% | 1,750 |
Shasta County • Unified | 17:1 | 39.9% | 28.1% | 1,156 |
Sonoma County • Elementary | 17:1 | 54.8% | 42.9% | 1,236 |
Mendocino County • Unified | 17:1 | 24.8% | 14.1% | 1,852 |
Los Angeles County • Elementary | 17:1 | 56.5% | 41.9% | 1,303 |
Imperial County • Unified | 17:1 | 53.0% | 37.0% | 1,574 |
Fresno County • Elementary | 17:1 | 45.3% | 24.2% | 1,801 |
Fresno County • Unified | 17:1 | 39.5% | 24.9% | 1,426 |
Monterey County • Unified | 16:1 | 72.1% | 57.5% | 1,749 |
Glenn County • Unified | 16:1 | 29.4% | 20.3% | 1,399 |
Imperial County • Unified | 16:1 | 37.4% | 27.3% | 1,080 |
Mono County • Unified | 16:1 | 42.4% | 39.8% | 1,087 |
Marin County • Elementary | 16:1 | 77.5% | 77.7% | 1,014 |
Humboldt County • Elementary | 16:1 | 33.7% | 23.8% | 1,238 |
Sonoma County • Unified | 16:1 | 55.4% | 48.1% | 1,221 |
San Mateo County • Elementary | 15:1 | 82.5% | 81.9% | 1,134 |
County • | 15:1 | 24.2% | 11.7% | 1,878 |
Marin County • Elementary | 15:1 | 80.7% | 78.8% | 1,043 |
Humboldt County • Elementary | 14:1 | 42.0% | 28.6% | 1,174 |
County • | 14:1 | 6.2% | 2.6% | 1,894 |
County • | 14:1 | 21.8% | 7.5% | 1,290 |
San Mateo County • Elementary | 13:1 | 86.4% | 86.0% | 1,239 |
Napa County • Unified | 13:1 | 62.1% | 41.3% | 1,104 |
County • | 13:1 | 5.5% | 13.0% | 1,075 |
Small Districts with ratios under 20:1
The smallest student-teacher ratios among districts with fewer than 1,000 students.
Tuolumne County • Unified | 10:1 | 34.7% | 14.1% | 268 |
Marin County • Unified | 10:1 | 33.8% | 26.0% | 469 |
County • | 10:1 | 15.0% | 0.0% | 483 |
Riverside County • Unified | 10:1 | 16.7% | 11.1% | 29 |
County • | 10:1 | 14.8% | 6.7% | 498 |
Alpine County • Unified | 10:1 | 35.6% | 22.2% | 57 |
County • | 10:1 | 19.7% | 9.4% | 284 |
County • | 9:1 | 13.9% | 2.9% | 266 |
Fresno County • Elementary | 9:1 | 53.9% | 46.1% | 21 |
Siskiyou County • Elementary | 9:1 | 33.3% | 41.7% | 18 |
Humboldt County • Elementary | 9:1 | 57.1% | 28.6% | 24 |
Trinity County • Unified | 9:1 | 48.7% | 52.6% | 72 |
County • | 9:1 | 4.8% | 4.8% | 399 |
Mendocino County • Unified | 9:1 | 46.5% | 31.4% | 111 |
Sonoma County • Elementary | 8:1 | 36.9% | 20.2% | 396 |
Sonoma County • Elementary | 8:1 | 31.6% | 36.8% | 23 |
Mendocino County • Elementary | 7:1 | 29.4% | 17.6% | 34 |
Inyo County • Unified | 7:1 | 47.1% | 23.5% | 21 |
Glenn County • Unified | 7:1 | 4.2% | 12.5% | 83 |
County • | 5:1 | 3.5% | 2.8% | 350 |
County • | 5:1 | 18.8% | 6.3% | 42 |
El Dorado County • Elementary | 5:1 | 81.8% | 63.6% | 10 |
County • | 4:1 | 5.1% | 2.5% | 279 |
County • | 2:1 | 0.0% | 4.9% | 107 |
San Bernardino County • Elementary | 1:1 | 56.5% | 39.1% | 1 |
