| 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 | 

				
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				| 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% |