| Index | Granite City | Illinois | National |
| Average Test Scores | 17% | 33% | 48% |
| Student/Teacher ratio | 20:1 | 18:1 | 16:1 |
| Total public schools | 10 | 3,938 | 79,221 |
| Total private schools | 6 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |


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| Index | Granite City | Illinois | National |
| Completed 8th grade | 82.1% | 86.2% | 84.3% |
| Completed high school | 80.0% | 84.7% | 83.0% |
| Completed some college | 48.0% | 61.8% | 59.4% |
| Completed associate degree | 23.4% | 40.7% | 38.5% |
| Completed bachelors | 14.5% | 32.9% | 30.3% |
| Completed masters | 4.9% | 12.7% | 11.5% |
| Completed professional degree | 1.0% | 3.4% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of 10 public schools, 6 private schools and n/a post-secondary schools in Granite City. Using the proficiency score averages, the average test scores for Granite City, IL schools is 17%. The average student to teacher ratio is 20:1. In Granite City, IL, an average of 82.1% of students have completed 8th grade and an average of 80.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clayton, MO | 17,205 | 73% | 52.7% |
| Brentwood, MO | 8,283 | 70% | 45.6% |
| Olivette, MO | 8,079 | 70% | 44.8% |
| Kirkwood, MO | 28,511 | 69% | 43.1% |
| Maryville, IL | 8,220 | 65% | 34.4% |
| Granite City, IL | 29,235 | 17% | 65.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Benicia, CA | 29,204 | 53% | 10.6% |
| Henderson, KY | 29,267 | 53% | 10.3% |
| Burton, MI | 29,181 | 27% | 43.1% |
| Greenville, TX | 29,176 | 36% | 24.5% |
| Shirley, NY | 29,314 | 37% | 22.4% |
| Granite City, IL | 29,235 | 17% | 65.2% |