| Index | McCook | Illinois | National |
| Average Test Scores | n/a | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | McCook | Illinois | National |
| Completed 8th grade | 95.3% | 86.2% | 84.3% |
| Completed high school | 93.5% | 84.7% | 83.0% |
| Completed some college | 56.5% | 61.8% | 59.4% |
| Completed associate degree | 38.2% | 40.7% | 38.5% |
| Completed bachelors | 25.3% | 32.9% | 30.3% |
| Completed masters | 17.1% | 12.7% | 11.5% |
| Completed professional degree | 2.4% | 3.4% | 3.3% |
| Completed doctorate | 1.8% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in McCook. Using the proficiency score averages, the average test scores for McCook, IL schools is n/a. The average student to teacher ratio is n/a. In McCook, IL, an average of 95.3% of students have completed 8th grade and an average of 93.5% 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% |
| McCook, IL | 317 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wanette, OK | 317 | 34% | 30.2% |
| Holland Patent, NY | 317 | 65% | 35.1% |
| Maunaloa, HI | 317 | 20% | 58.3% |
| Kempton, IL | 317 | 50% | 4.2% |
| Campton, KY | 316 | 38% | 20.1% |
| McCook, IL | 317 | n/a |
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