| Index | Glen Carbon | Illinois | National |
| Average Test Scores | 57% | 31% | 49% |
| Student/Teacher ratio | 14:1 | 18:1 | 16:1 |
| Total public schools | 1 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Glen Carbon | Illinois | National |
| Completed 8th grade | 96.0% | 86.2% | 84.3% |
| Completed high school | 94.8% | 84.7% | 83.0% |
| Completed some college | 80.3% | 61.8% | 59.4% |
| Completed associate degree | 62.7% | 40.7% | 38.5% |
| Completed bachelors | 52.1% | 32.9% | 30.3% |
| Completed masters | 20.6% | 12.7% | 11.5% |
| Completed professional degree | 6.7% | 3.4% | 3.3% |
| Completed doctorate | 3.9% | 1.2% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Glen Carbon. Using the proficiency score averages, the average test scores for Glen Carbon, IL schools is 57%. The average student to teacher ratio is 14:1. In Glen Carbon, IL, an average of 96.0% of students have completed 8th grade and an average of 94.8% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Scott AFB, IL | 2,982 | 54% | 10% |
| Edwardsville, IL | 25,044 | 53% | 8% |
| Shiloh, IL | 13,050 | 50% | 1% |
| Maryville, IL | 7,837 | 45% | 10% |
| Worden, IL | 1,192 | 43% | 13% |
| Glen Carbon, IL | 12,782 | 57% | 15% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Bedford, OH | 12,782 | 70% | 42% |
| Conneaut, OH | 12,782 | 66% | 34% |
| Minden, LA | 12,790 | 57% | 15% |
| Fruita, CO | 12,790 | 32% | 35% |
| Forest Hill, TX | 12,774 | 66% | 33% |
| Glen Carbon, IL | 12,782 | 57% | 15% |
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