| Index | McLean | 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 | McLean | Illinois | National |
| Completed 8th grade | 85.2% | 86.2% | 84.3% |
| Completed high school | 80.3% | 84.7% | 83.0% |
| Completed some college | 44.8% | 61.8% | 59.4% |
| Completed associate degree | 21.4% | 40.7% | 38.5% |
| Completed bachelors | 13.5% | 32.9% | 30.3% |
| Completed masters | 3.0% | 12.7% | 11.5% |
| Completed professional degree | 0.5% | 3.4% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in McLean. Using the proficiency score averages, the average test scores for McLean, IL schools is n/a. The average student to teacher ratio is n/a. In McLean, IL, an average of 85.2% of students have completed 8th grade and an average of 80.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Downs, IL | 1,417 | 65% | 35.1% |
| Minier, IL | 1,090 | 45% | 7.3% |
| Danvers, IL | 979 | 45% | 7.3% |
| Lincoln, IL | 13,742 | 42% | 12.4% |
| Normal, IL | 54,699 | 41% | 14.9% |
| McLean, IL | 808 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Matador, TX | 808 | 52% | 8.3% |
| Westphalia, MI | 808 | 64% | 32.3% |
| Blanchardville, WI | 808 | 45% | 7.3% |
| Philadelphia, TN | 808 | 43% | 11.5% |
| Lexington, AL | 809 | 55% | 13.5% |
| McLean, IL | 808 | n/a |
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