| 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 | 8,085 | 79% | 64.6% |
| Clarendon Hills, IL | 8,834 | 77% | 59.4% |
| Hinsdale, IL | 17,366 | 74% | 54.7% |
| Western Springs, IL | 13,247 | 74% | 54.4% |
| River Forest, IL | 10,883 | 67% | 38.5% |
| Glen Ellyn, IL | 27,741 | 59% | 23.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Rockledge, FL | 27,739 | 57% | 19.4% |
| Marion, IN | 27,730 | 37% | 23.1% |
| Kirkwood, MO | 27,772 | 69% | 43.1% |
| Frankfort, KY | 27,705 | 45% | 6.4% |
| Perry Hall, MD | 27,778 | 70% | 46.4% |
| Glen Ellyn, IL | 27,741 | 59% | 23.0% |
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