| Index | Descanso | California | National |
| Average Test Scores | 60% | 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 | Descanso | California | National |
| Completed 8th grade | 92.0% | 81.1% | 84.3% |
| Completed high school | 92.0% | 79.8% | 83.0% |
| Completed some college | 76.3% | 61.5% | 59.4% |
| Completed associate degree | 39.6% | 39.8% | 38.5% |
| Completed bachelors | 25.9% | 32.0% | 30.3% |
| Completed masters | 7.8% | 11.9% | 11.5% |
| Completed professional degree | 3.7% | 3.9% | 3.3% |
| Completed doctorate | 0.8% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Descanso. Using the proficiency score averages, the average test scores for Descanso, CA schools is 60%. The average student to teacher ratio is n/a. In Descanso, CA, an average of 92.0% of students have completed 8th grade and an average of 92.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Alpine, CA | 14,958 | 51% | 5.7% |
| Jamul, CA | 5,776 | 46% | 4.7% |
| Ramona, CA | 21,493 | 45% | 5.8% |
| Julian, CA | 1,318 | 38% | 21.5% |
| Pine Valley, CA | 1,611 | 33% | 31.9% |
| Descanso, CA | 1,398 | 60% | 24.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Brookston, IN | 1,398 | 62% | 29.2% |
| Okarche, OK | 1,398 | 42% | 11.8% |
| Payson, IL | 1,398 | 25% | 49.0% |
| Philo, IL | 1,398 | 50% | 3.1% |
| Standish, MI | 1,397 | 49% | 2.1% |
| Descanso, CA | 1,398 | 60% | 24.0% |
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