| Index | South Jacksonville | Illinois | National |
| Average Test Scores | 25% | 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 | South Jacksonville | Illinois | National |
| Completed 8th grade | 91.1% | 86.2% | 84.3% |
| Completed high school | 89.8% | 84.7% | 83.0% |
| Completed some college | 51.6% | 61.8% | 59.4% |
| Completed associate degree | 29.6% | 40.7% | 38.5% |
| Completed bachelors | 23.7% | 32.9% | 30.3% |
| Completed masters | 10.1% | 12.7% | 11.5% |
| Completed professional degree | 2.3% | 3.4% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in South Jacksonville. Using the proficiency score averages, the average test scores for South Jacksonville, IL schools is 25%. The average student to teacher ratio is n/a. In South Jacksonville, IL, an average of 91.1% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Concord, IL | 173 | 41% | 15.1% |
| Murrayville, IL | 597 | 32% | 33.3% |
| Roodhouse, IL | 1,704 | 32% | 34.4% |
| Winchester, IL | 1,755 | 31% | 34.9% |
| Waverly, IL | 1,515 | 30% | 38.5% |
| South Jacksonville, IL | 3,235 | 25% | 49.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Sloatsburg, NY | 3,234 | 47% | 2.1% |
| Early, TX | 3,234 | 54% | 12.8% |
| Knoxville, IL | 3,234 | 25% | 47.2% |
| Clare, MI | 3,234 | 45% | 6.9% |
| Delhi, NY | 3,234 | 56% | 16.1% |
| South Jacksonville, IL | 3,235 | 25% | 49.0% |