| Index | Mascoutah | Illinois | National |
| Average Test Scores | 54% | 33% | 48% |
| Student/Teacher ratio | 16:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | 1 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Mascoutah | Illinois | National |
| Completed 8th grade | 90.7% | 86.2% | 84.3% |
| Completed high school | 89.7% | 84.7% | 83.0% |
| Completed some college | 69.0% | 61.8% | 59.4% |
| Completed associate degree | 44.7% | 40.7% | 38.5% |
| Completed bachelors | 31.7% | 32.9% | 30.3% |
| Completed masters | 9.2% | 12.7% | 11.5% |
| Completed professional degree | 0.9% | 3.4% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Mascoutah. Using the proficiency score averages, the average test scores for Mascoutah, IL schools is 54%. The average student to teacher ratio is 16:1. In Mascoutah, IL, an average of 90.7% of students have completed 8th grade and an average of 89.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Aviston, IL | 2,173 | 79% | 63.5% |
| Germantown, IL | 1,279 | 72% | 50.0% |
| St. Jacob, IL | 1,529 | 67% | 39.6% |
| Maryville, IL | 7,962 | 65% | 34.4% |
| Smithton, IL | 4,019 | 61% | 27.1% |
| Mascoutah, IL | 8,454 | 54% | 11.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Tuscumbia, AL | 8,445 | 42% | 12.7% |
| Tuskegee, AL | 8,443 | 24% | 50.5% |
| Park City, UT | 8,467 | 51% | 6.6% |
| Mason, MI | 8,441 | 54% | 12.5% |
| Carbondale, PA | 8,438 | 43% | 10.9% |
| Mascoutah, IL | 8,454 | 54% | 11.5% |
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