| Index | O'hare | Chicago | Illinois |
| Average Test Scores | 50% | 22% | 33% |
| Student/Teacher ratio | n/a | 21:1 | 18:1 |
| Total public schools | n/a | 644 | 3,938 |
| Total private schools | n/a | 387 | 1,438 |
| Total post-secondary schools | n/a | 104 | 306 |
| Index | O'hare | Chicago | Illinois |
| Completed 8th grade | 88.7% | 82.2% | 86.2% |
| Completed high school | 87.3% | 80.3% | 84.7% |
| Completed some college | 66.0% | 60.1% | 61.8% |
| Completed associate degree | 45.7% | 42.2% | 40.7% |
| Completed bachelors | 36.6% | 36.5% | 32.9% |
| Completed masters | 13.5% | 14.8% | 12.7% |
| Completed professional degree | 2.4% | 4.5% | 3.4% |
| Completed doctorate | 1.1% | 1.5% | 1.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Oak Brook, IL | 8,085 | 79% | 64.6% |
| Clarendon Hills, IL | 8,834 | 77% | 59.4% |
| Deerfield, IL | 19,030 | 77% | 59.4% |
| Hinsdale, IL | 17,366 | 74% | 54.7% |
| Western Springs, IL | 13,247 | 74% | 54.4% |
| Chicago, IL | 2,699,347 | 22% | 54.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Houston, TX | 2,313,238 | 43% | 10.9% |
| Phoenix, AZ | 1,658,422 | 39% | 18.6% |
| Philadelphia, PA | 1,581,531 | 29% | 38.7% |
| San Antonio, TX | 1,529,133 | 42% | 13.1% |
| Los Angeles, CA | 3,973,278 | 38% | 21.1% |
| Chicago, IL | 2,699,347 | 22% | 54.1% |
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