| Index | Irwin | 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 | Irwin | Illinois | National |
| Completed 8th grade | 94.1% | 86.2% | 84.3% |
| Completed high school | 94.1% | 84.7% | 83.0% |
| Completed some college | 56.9% | 61.8% | 59.4% |
| Completed associate degree | 19.6% | 40.7% | 38.5% |
| Completed bachelors | 17.6% | 32.9% | 30.3% |
| Completed masters | 3.9% | 12.7% | 11.5% |
| Completed professional degree | 0.0% | 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 Irwin. Using the proficiency score averages, the average test scores for Irwin, IL schools is n/a. The average student to teacher ratio is n/a. In Irwin, IL, an average of 94.1% of students have completed 8th grade and an average of 94.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kempton, IL | 317 | 50% | 4.2% |
| Chebanse, IL | 1,208 | 45% | 7.3% |
| Braidwood, IL | 6,338 | 40% | 17.4% |
| Manteno, IL | 8,545 | 34% | 29.9% |
| Bourbonnais, IL | 19,639 | 31% | 35.2% |
| Irwin, IL | 39 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Unity, OR | 39 | 50% | 4.2% |
| Stony River, AK | 39 | 50% | 4.2% |
| Lewiston, NE | 40 | 48% | 1.0% |
| Levelock, AK | 40 | 20% | 58.3% |
| Addy, WA | 40 | 45% | 6.3% |
| Irwin, IL | 39 | n/a |
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