| Index | Glen Carbon | Illinois | National |
| Average Test Scores | 57% | 33% | 48% |
| 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 |


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| 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 | Population | Avg. Test Scores | National Avg. |
| St. Jacob, IL | 1,590 | 67% | 39.6% |
| Maryville, IL | 8,220 | 65% | 34.4% |
| Worden, IL | 908 | 57% | 18.8% |
| Alhambra, IL | 702 | 55% | 14.6% |
| Marine, IL | 1,017 | 55% | 13.5% |
| Glen Carbon, IL | 12,963 | 57% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Woodhaven, MI | 12,963 | 48% | 0.2% |
| Kewanee, IL | 12,961 | 26% | 46.4% |
| Bonita, CA | 12,952 | 55% | 14.9% |
| Justice, IL | 12,945 | 40% | 16.0% |
| Middleburg, FL | 12,986 | 63% | 30.2% |
| Glen Carbon, IL | 12,963 | 57% | 18.8% |