| Index | Glen Ellyn | Illinois | National |
| Average Test Scores | 59% | 33% | 48% |
| Student/Teacher ratio | 15:1 | 18:1 | 16:1 |
| Total public schools | 12 | 3,938 | 79,221 |
| Total private schools | 3 | 1,438 | 24,874 |
| Total post-secondary schools | 1 | 306 | 7,963 |
| Index | Glen Ellyn | Illinois | National |
| Completed 8th grade | 95.7% | 86.2% | 84.3% |
| Completed high school | 95.1% | 84.7% | 83.0% |
| Completed some college | 85.6% | 61.8% | 59.4% |
| Completed associate degree | 69.8% | 40.7% | 38.5% |
| Completed bachelors | 64.3% | 32.9% | 30.3% |
| Completed masters | 28.1% | 12.7% | 11.5% |
| Completed professional degree | 6.8% | 3.4% | 3.3% |
| Completed doctorate | 1.7% | 1.2% | 1.3% |
There are a total of 12 public schools, 3 private schools and 1 post-secondary schools in Glen Ellyn. Using the proficiency score averages, the average test scores for Glen Ellyn, IL schools is 59%. The average student to teacher ratio is 15:1. In Glen Ellyn, IL, an average of 95.7% of students have completed 8th grade and an average of 95.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Oak Brook, IL | 7,988 | 79% | 64.2% |
| Clarendon Hills, IL | 8,641 | 77% | 59.0% |
| Hinsdale, IL | 17,438 | 74% | 54.3% |
| Western Springs, IL | 13,133 | 74% | 54.0% |
| River Forest, IL | 11,217 | 67% | 38.2% |
| Glen Ellyn, IL | 27,894 | 59% | 22.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Dodge City, KS | 27,875 | 25% | 49.0% |
| Chamblee, GA | 27,862 | 47% | 1.9% |
| Fredericksburg, VA | 27,853 | 77% | 59.5% |
| Round Lake Beach, IL | 27,936 | 23% | 51.5% |
| Oakdale, MN | 27,956 | 58% | 20.4% |
| Glen Ellyn, IL | 27,894 | 59% | 22.7% |
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