| Index | Fullerton | California | National |
| Average Test Scores | n/a | 10% | 48% |
| Student/Teacher ratio | 26:1 | 20:1 | 16:1 |
| Total public schools | 24 | 8,308 | 79,221 |
| Total private schools | 17 | 3,438 | 24,874 |
| Total post-secondary schools | 6 | 1,085 | 7,963 |
| Index | Fullerton | California | National |
| Completed 8th grade | 86.3% | 81.1% | 84.3% |
| Completed high school | 85.3% | 79.8% | 83.0% |
| Completed some college | 68.2% | 61.5% | 59.4% |
| Completed associate degree | 47.0% | 39.8% | 38.5% |
| Completed bachelors | 39.5% | 32.0% | 30.3% |
| Completed masters | 14.5% | 11.9% | 11.5% |
| Completed professional degree | 4.8% | 3.9% | 3.3% |
| Completed doctorate | 2.2% | 1.6% | 1.3% |
There are a total of 24 public schools, 17 private schools and 6 post-secondary schools in Fullerton. Using the proficiency score averages, the average test scores for Fullerton, CA schools is n/a. The average student to teacher ratio is 26:1. In Fullerton, CA, an average of 86.3% of students have completed 8th grade and an average of 85.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fullerton, CA | 139,491 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Killeen, TX | 138,745 | 38% | 22.0% |
| McAllen, TX | 138,475 | 53% | 10.6% |
| Dayton, OH | 141,143 | 41% | 15.6% |
| Hampton, VA | 136,789 | 76% | 58.0% |
| Bellevue, WA | 136,718 | 72% | 49.7% |
| Fullerton, CA | 139,491 | n/a |
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