| Index | Diablo | California | National |
| Average Test Scores | n/a | 43% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 8,308 | 79,221 |
| Total private schools | n/a | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |

| Index | Diablo | California | National |
| Completed 8th grade | 100.0% | 81.1% | 84.3% |
| Completed high school | 100.0% | 79.8% | 83.0% |
| Completed some college | 82.8% | 61.5% | 59.4% |
| Completed associate degree | 68.0% | 39.8% | 38.5% |
| Completed bachelors | 68.0% | 32.0% | 30.3% |
| Completed masters | 36.0% | 11.9% | 11.5% |
| Completed professional degree | 14.8% | 3.9% | 3.3% |
| Completed doctorate | 0.0% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Diablo. Using the proficiency score averages, the average test scores for Diablo, CA schools is n/a. The average student to teacher ratio is n/a. In Diablo, CA, an average of 100.0% of students have completed 8th grade and an average of 100.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Orinda, CA | 19,891 | 87% | 81.4% |
| Moraga, CA | 17,346 | 84% | 75.2% |
| Lafayette, CA | 26,574 | 83% | 73.8% |
| San Ramon, CA | 83,423 | 78% | 62.9% |
| Piedmont, CA | 11,734 | 78% | 62.5% |
| Diablo, CA | 867 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Danielsville, GA | 867 | 57% | 18.8% |
| Savoonga, AK | 867 | 5% | 89.6% |
| McGill, NV | 867 | 35% | 28.1% |
| Potlatch, ID | 867 | 41% | 15.1% |
| Moores Hill, IN | 867 | 55% | 13.5% |
| Diablo, CA | 867 | n/a |