| Index | Wilmington | Illinois | National |
| Average Test Scores | 42% | 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 | Wilmington | Illinois | National |
| Completed 8th grade | 86.8% | 86.2% | 84.3% |
| Completed high school | 86.3% | 84.7% | 83.0% |
| Completed some college | 44.8% | 61.8% | 59.4% |
| Completed associate degree | 22.5% | 40.7% | 38.5% |
| Completed bachelors | 14.8% | 32.9% | 30.3% |
| Completed masters | 4.2% | 12.7% | 11.5% |
| Completed professional degree | 0.5% | 3.4% | 3.3% |
| Completed doctorate | 0.2% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Wilmington. Using the proficiency score averages, the average test scores for Wilmington, IL schools is 42%. The average student to teacher ratio is n/a. In Wilmington, IL, an average of 86.8% of students have completed 8th grade and an average of 86.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Manhattan, IL | 8,218 | 54% | 12.5% |
| New Lenox, IL | 26,788 | 51% | 6.4% |
| Elwood, IL | 2,524 | 51% | 5.2% |
| Coal City, IL | 4,941 | 49% | 1.3% |
| Channahon, IL | 13,281 | 48% | 0.7% |
| Wilmington, IL | 5,883 | 42% | 12.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Villa Park, CA | 5,883 | 58% | 20.3% |
| Attalla, AL | 5,885 | 46% | 4.8% |
| Paulsboro, NJ | 5,881 | 17% | 64.6% |
| Riverside, MD | 5,888 | 34% | 29.2% |
| Clearfield, PA | 5,878 | 50% | 4.7% |
| Wilmington, IL | 5,883 | 42% | 12.2% |
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