| Index | Oak Glen | 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 | Oak Glen | California | National |
| Completed 8th grade | 91.8% | 81.1% | 84.3% |
| Completed high school | 90.9% | 79.8% | 83.0% |
| Completed some college | 75.7% | 61.5% | 59.4% |
| Completed associate degree | 36.9% | 39.8% | 38.5% |
| Completed bachelors | 23.2% | 32.0% | 30.3% |
| Completed masters | 6.8% | 11.9% | 11.5% |
| Completed professional degree | 3.1% | 3.9% | 3.3% |
| Completed doctorate | 3.1% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Oak Glen. Using the proficiency score averages, the average test scores for Oak Glen, CA schools is n/a. The average student to teacher ratio is n/a. In Oak Glen, CA, an average of 91.8% of students have completed 8th grade and an average of 90.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Redlands, CA | 71,680 | 50% | 4.2% |
| Yucaipa, CA | 54,358 | 41% | 15.1% |
| Calimesa, CA | 9,156 | 41% | 15.6% |
| Beaumont, CA | 48,272 | 40% | 16.3% |
| Mentone, CA | 10,141 | 39% | 18.8% |
| Oak Glen, CA | 307 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cromwell, OK | 307 | 19% | 61.5% |
| Vinton, OH | 307 | 60% | 24.0% |
| Kinderhook, IL | 307 | 27% | 43.8% |
| Switz City, IN | 307 | 45% | 6.3% |
| Gallina, NM | 308 | 29% | 39.2% |
| Oak Glen, CA | 307 | n/a |
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