| Index | Caseyville | Illinois | National |
| Average Test Scores | 34% | 33% | 48% |
| Student/Teacher ratio | 16:1 | 18:1 | 16:1 |
| Total public schools | 2 | 3,938 | 79,221 |
| Total private schools | 2 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Caseyville | Illinois | National |
| Completed 8th grade | 82.6% | 86.2% | 84.3% |
| Completed high school | 78.5% | 84.7% | 83.0% |
| Completed some college | 44.1% | 61.8% | 59.4% |
| Completed associate degree | 18.3% | 40.7% | 38.5% |
| Completed bachelors | 12.2% | 32.9% | 30.3% |
| Completed masters | 2.8% | 12.7% | 11.5% |
| Completed professional degree | 0.4% | 3.4% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of 2 public schools, 2 private schools and n/a post-secondary schools in Caseyville. Using the proficiency score averages, the average test scores for Caseyville, IL schools is 34%. The average student to teacher ratio is 16:1. In Caseyville, IL, an average of 82.6% of students have completed 8th grade and an average of 78.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Jacob, IL | 1,529 | 67% | 39.6% |
| Maryville, IL | 7,962 | 65% | 34.4% |
| Smithton, IL | 4,019 | 61% | 27.1% |
| Glen Carbon, IL | 12,468 | 57% | 18.8% |
| Columbia, IL | 10,692 | 56% | 16.7% |
| Caseyville, IL | 4,203 | 34% | 30.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Port Aransas, TX | 4,203 | 70% | 45.1% |
| Tazewell, VA | 4,203 | 89% | 84.4% |
| Shallotte, NC | 4,205 | 53% | 10.4% |
| Elmira Heights, NY | 4,206 | 54% | 13.2% |
| Lonoke, AR | 4,206 | 36% | 25.7% |
| Caseyville, IL | 4,203 | 34% | 30.2% |
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