| Index | Mattoon | Illinois | National |
| Average Test Scores | 30% | 33% | 48% |
| Student/Teacher ratio | 10:1 | 18:1 | 16:1 |
| Total public schools | 12 | 3,938 | 79,221 |
| Total private schools | 2 | 1,438 | 24,874 |
| Total post-secondary schools | 1 | 306 | 7,963 |
| Index | Mattoon | Illinois | National |
| Completed 8th grade | 82.7% | 86.2% | 84.3% |
| Completed high school | 80.9% | 84.7% | 83.0% |
| Completed some college | 52.8% | 61.8% | 59.4% |
| Completed associate degree | 26.1% | 40.7% | 38.5% |
| Completed bachelors | 15.7% | 32.9% | 30.3% |
| Completed masters | 5.4% | 12.7% | 11.5% |
| Completed professional degree | 1.3% | 3.4% | 3.3% |
| Completed doctorate | 0.6% | 1.2% | 1.3% |
There are a total of 12 public schools, 2 private schools and 1 post-secondary schools in Mattoon. Using the proficiency score averages, the average test scores for Mattoon, IL schools is 30%. The average student to teacher ratio is 10:1. In Mattoon, IL, an average of 82.7% of students have completed 8th grade and an average of 80.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Strasburg, IL | 528 | 37% | 22.4% |
| Sullivan, IL | 4,450 | 29% | 39.2% |
| Toledo, IL | 1,163 | 28% | 42.4% |
| Charleston, IL | 20,141 | 27% | 44.8% |
| Neoga, IL | 1,579 | 26% | 46.4% |
| Mattoon, IL | 17,273 | 30% | 37.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Colonial Heights, VA | 17,283 | 78% | 62.7% |
| Lindenwold, NJ | 17,288 | 17% | 65.4% |
| Taylor, TX | 17,291 | 41% | 15.0% |
| Coalinga, CA | 17,252 | 27% | 44.2% |
| Brenham, TX | 17,297 | 47% | 2.1% |
| Mattoon, IL | 17,273 | 30% | 37.2% |
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