| Index | Irwin | Pennsylvania | National |
| Average Test Scores | 72% | 55% | 48% |
| Student/Teacher ratio | 17:1 | 16:1 | 16:1 |
| Total public schools | 4 | 2,563 | 79,221 |
| Total private schools | 1 | 1,626 | 24,874 |
| Total post-secondary schools | n/a | 406 | 7,963 |
| Index | Irwin | Pennsylvania | National |
| Completed 8th grade | 91.3% | 86.9% | 84.3% |
| Completed high school | 90.7% | 85.6% | 83.0% |
| Completed some college | 60.5% | 53.6% | 59.4% |
| Completed associate degree | 42.8% | 37.4% | 38.5% |
| Completed bachelors | 26.8% | 29.3% | 30.3% |
| Completed masters | 6.5% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of 4 public schools, 1 private schools and n/a post-secondary schools in Irwin. Using the proficiency score averages, the average test scores for Irwin, PA schools is 72%. The average student to teacher ratio is 17:1. In Irwin, PA, an average of 91.3% of students have completed 8th grade and an average of 90.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Harrison City, PA | 78 | 92% | 90.6% |
| Plum, PA | 27,137 | 80% | 66.1% |
| Murrysville, PA | 19,692 | 78% | 62.1% |
| Trafford, PA | 3,057 | 78% | 61.5% |
| Jefferson Hills, PA | 11,166 | 78% | 61.5% |
| Irwin, PA | 3,773 | 72% | 50.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Cozad, NE | 3,776 | 40% | 16.0% |
| Hardin, MT | 3,777 | 16% | 66.0% |
| Alturas, FL | 3,778 | 55% | 13.5% |
| Rochester, IL | 3,778 | 36% | 24.7% |
| Tiffin, IA | 3,779 | 77% | 61.1% |
| Irwin, PA | 3,773 | 72% | 50.7% |
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