| Index | Big Rock | Illinois | National |
| Average Test Scores | 55% | 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 | Big Rock | Illinois | National |
| Completed 8th grade | 91.5% | 86.2% | 84.3% |
| Completed high school | 90.6% | 84.7% | 83.0% |
| Completed some college | 64.8% | 61.8% | 59.4% |
| Completed associate degree | 34.0% | 40.7% | 38.5% |
| Completed bachelors | 24.9% | 32.9% | 30.3% |
| Completed masters | 6.4% | 12.7% | 11.5% |
| Completed professional degree | 1.2% | 3.4% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Big Rock. Using the proficiency score averages, the average test scores for Big Rock, IL schools is 55%. The average student to teacher ratio is n/a. In Big Rock, IL, an average of 91.5% of students have completed 8th grade and an average of 90.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Campton Hills, IL | 10,962 | 61% | 26.0% |
| St. Charles, IL | 32,612 | 57% | 19.0% |
| Millbrook, IL | 357 | 52% | 8.3% |
| Maple Park, IL | 1,599 | 50% | 4.7% |
| Geneva, IL | 21,843 | 49% | 1.6% |
| Big Rock, IL | 1,271 | 55% | 13.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Stanberry, MO | 1,271 | 53% | 9.9% |
| Inman, KS | 1,271 | 41% | 15.1% |
| Renville, MN | 1,271 | 47% | 2.1% |
| Fayette, OH | 1,271 | 66% | 37.0% |
| Ashland, IL | 1,272 | 21% | 55.7% |
| Big Rock, IL | 1,271 | 55% | 13.5% |
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