| Index | Willowbrook | Illinois | National |
| Average Test Scores | 52% | 33% | 48% |
| Student/Teacher ratio | 15:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Willowbrook | Illinois | National |
| Completed 8th grade | 96.3% | 86.2% | 84.3% |
| Completed high school | 96.3% | 84.7% | 83.0% |
| Completed some college | 77.4% | 61.8% | 59.4% |
| Completed associate degree | 56.6% | 40.7% | 38.5% |
| Completed bachelors | 48.9% | 32.9% | 30.3% |
| Completed masters | 23.8% | 12.7% | 11.5% |
| Completed professional degree | 8.3% | 3.4% | 3.3% |
| Completed doctorate | 2.8% | 1.2% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Willowbrook. Using the proficiency score averages, the average test scores for Willowbrook, IL schools is 52%. The average student to teacher ratio is 15:1. In Willowbrook, IL, an average of 96.3% of students have completed 8th grade and an average of 96.3% 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% |
| Willowbrook, IL | 8,610 | 52% | 8.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Perryton, TX | 8,609 | 43% | 10.2% |
| Pleasant Hill, MO | 8,611 | 52% | 8.6% |
| Nantucket, MA | 8,606 | 46% | 4.5% |
| Paris, IL | 8,616 | 38% | 20.8% |
| Stuttgart, AR | 8,617 | 37% | 23.7% |
| Willowbrook, IL | 8,610 | 52% | 8.0% |
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