| Index | Glendale Heights | Illinois | National |
| Average Test Scores | 34% | 33% | 48% |
| Student/Teacher ratio | 15:1 | 18:1 | 16:1 |
| Total public schools | 8 | 3,938 | 79,221 |
| Total private schools | 2 | 1,438 | 24,874 |
| Total post-secondary schools | 2 | 306 | 7,963 |
| Index | Glendale Heights | Illinois | National |
| Completed 8th grade | 78.9% | 86.2% | 84.3% |
| Completed high school | 76.8% | 84.7% | 83.0% |
| Completed some college | 56.3% | 61.8% | 59.4% |
| Completed associate degree | 34.5% | 40.7% | 38.5% |
| Completed bachelors | 26.8% | 32.9% | 30.3% |
| Completed masters | 6.6% | 12.7% | 11.5% |
| Completed professional degree | 1.8% | 3.4% | 3.3% |
| Completed doctorate | 0.8% | 1.2% | 1.3% |
There are a total of 8 public schools, 2 private schools and 2 post-secondary schools in Glendale Heights. Using the proficiency score averages, the average test scores for Glendale Heights, IL schools is 34%. The average student to teacher ratio is 15:1. In Glendale Heights, IL, an average of 78.9% of students have completed 8th grade and an average of 76.8% 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% |
| Northbrook, IL | 33,216 | 72% | 50.7% |
| Glendale Heights, IL | 33,863 | 34% | 29.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Cottonwood Heights, UT | 33,865 | 59% | 22.9% |
| Chester, PA | 33,855 | 18% | 62.1% |
| San Luis, AZ | 33,875 | 30% | 37.1% |
| Newark, DE | 33,822 | 42% | 12.3% |
| San Dimas, CA | 33,812 | 55% | 15.3% |
| Glendale Heights, IL | 33,863 | 34% | 29.6% |
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