| Index | South Wilmington | Illinois | National |
| Average Test Scores | 45% | 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 Wilmington | Illinois | National |
| Completed 8th grade | 89.7% | 86.2% | 84.3% |
| Completed high school | 87.5% | 84.7% | 83.0% |
| Completed some college | 49.1% | 61.8% | 59.4% |
| Completed associate degree | 18.2% | 40.7% | 38.5% |
| Completed bachelors | 11.4% | 32.9% | 30.3% |
| Completed masters | 3.3% | 12.7% | 11.5% |
| Completed professional degree | 0.6% | 3.4% | 3.3% |
| Completed doctorate | 0.6% | 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 Wilmington. Using the proficiency score averages, the average test scores for South Wilmington, IL schools is 45%. The average student to teacher ratio is n/a. In South Wilmington, IL, an average of 89.7% of students have completed 8th grade and an average of 87.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Coal City, IL | 4,941 | 49% | 1.3% |
| Wilmington, IL | 5,883 | 42% | 12.2% |
| Morris, IL | 14,420 | 42% | 12.5% |
| Mazon, IL | 1,222 | 40% | 17.2% |
| Braidwood, IL | 6,338 | 40% | 17.4% |
| South Wilmington, IL | 702 | 45% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Queen City, MO | 702 | 43% | 9.9% |
| Chaumont, NY | 702 | 55% | 13.5% |
| Fort White, FL | 702 | 58% | 20.8% |
| Traver, CA | 702 | 30% | 38.5% |
| Cherry Valley, AR | 702 | 53% | 10.9% |
| South Wilmington, IL | 702 | 45% | 6.3% |
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