| Index | Crestline | California | National |
| Average Test Scores | 30% | 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 | Crestline | California | National |
| Completed 8th grade | 90.7% | 81.1% | 84.3% |
| Completed high school | 90.1% | 79.8% | 83.0% |
| Completed some college | 67.4% | 61.5% | 59.4% |
| Completed associate degree | 33.3% | 39.8% | 38.5% |
| Completed bachelors | 20.6% | 32.0% | 30.3% |
| Completed masters | 9.5% | 11.9% | 11.5% |
| Completed professional degree | 2.5% | 3.9% | 3.3% |
| Completed doctorate | 0.6% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Crestline. Using the proficiency score averages, the average test scores for Crestline, CA schools is 30%. The average student to teacher ratio is n/a. In Crestline, CA, an average of 90.7% of students have completed 8th grade and an average of 90.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Loma Linda, CA | 24,239 | 59% | 21.9% |
| Redlands, CA | 71,680 | 50% | 4.2% |
| Oak Hills, CA | 10,415 | 47% | 2.1% |
| Mentone, CA | 10,141 | 39% | 18.8% |
| Running Springs, CA | 4,410 | 37% | 22.9% |
| Crestline, CA | 9,351 | 30% | 37.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Exeter, NH | 9,349 | 51% | 5.4% |
| Edwards, CO | 9,347 | 32% | 32.6% |
| Carencro, LA | 9,346 | 60% | 24.5% |
| Claymont, DE | 9,343 | 49% | 2.1% |
| Coffeyville, KS | 9,343 | 19% | 60.8% |
| Crestline, CA | 9,351 | 30% | 37.5% |
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