| Index | Flat Rock | Illinois | National |
| Average Test Scores | n/a | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Flat Rock | Illinois | National |
| Completed 8th grade | 83.3% | 86.2% | 84.3% |
| Completed high school | 78.5% | 84.7% | 83.0% |
| Completed some college | 50.0% | 61.8% | 59.4% |
| Completed associate degree | 32.5% | 40.7% | 38.5% |
| Completed bachelors | 11.8% | 32.9% | 30.3% |
| Completed masters | 4.4% | 12.7% | 11.5% |
| Completed professional degree | 0.9% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Flat Rock. Using the proficiency score averages, the average test scores for Flat Rock, IL schools is n/a. The average student to teacher ratio is n/a. In Flat Rock, IL, an average of 83.3% of students have completed 8th grade and an average of 78.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sullivan, IN | 4,081 | 49% | 1.3% |
| Bruceville, IN | 400 | 47% | 3.1% |
| Carlisle, IN | 544 | 46% | 4.7% |
| Sumner, IL | 2,916 | 45% | 7.3% |
| Robinson, IL | 7,431 | 35% | 28.1% |
| Flat Rock, IL | 464 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Montrose, MO | 464 | 45% | 6.3% |
| Bryantown, MD | 464 | 48% | = 100 |
| Delta, MO | 464 | 29% | 39.1% |
| Seagrove, NC | 464 | 40% | 17.2% |
| Scammon Bay, AK | 464 | 7% | 86.5% |
| Flat Rock, IL | 464 | n/a |
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