| Index | Charter Oak | 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 |
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| Index | Charter Oak | California | National |
| Completed 8th grade | 83.2% | 81.1% | 84.3% |
| Completed high school | 82.3% | 79.8% | 83.0% |
| Completed some college | 61.8% | 61.5% | 59.4% |
| Completed associate degree | 38.3% | 39.8% | 38.5% |
| Completed bachelors | 22.7% | 32.0% | 30.3% |
| Completed masters | 5.5% | 11.9% | 11.5% |
| Completed professional degree | 0.9% | 3.9% | 3.3% |
| Completed doctorate | 0.3% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Charter Oak. Using the proficiency score averages, the average test scores for Charter Oak, CA schools is n/a. The average student to teacher ratio is n/a. In Charter Oak, CA, an average of 83.2% of students have completed 8th grade and an average of 82.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| San Marino, CA | 13,535 | 88% | 84.1% |
| Arcadia, CA | 59,066 | 74% | 53.2% |
| Yorba Linda, CA | 70,241 | 72% | 50.3% |
| Walnut, CA | 30,544 | 70% | 44.9% |
| Diamond Bar, CA | 57,925 | 67% | 39.8% |
| Charter Oak, CA | 10,172 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wimauma, FL | 10,172 | 49% | 2.5% |
| Gages Lake, IL | 10,172 | 46% | 5.2% |
| Russellville, AL | 10,174 | 38% | 20.3% |
| Denham Springs, LA | 10,174 | 80% | 67.0% |
| Carroll, IA | 10,175 | 73% | 51.7% |
| Charter Oak, CA | 10,172 | n/a |
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