| Index | Irwin | Iowa | National |
| Average Test Scores | 80% | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |

| Index | Irwin | Iowa | National |
| Completed 8th grade | 95.7% | 89.2% | 84.3% |
| Completed high school | 95.7% | 87.7% | 83.0% |
| Completed some college | 54.1% | 59.8% | 59.4% |
| Completed associate degree | 30.7% | 38.4% | 38.5% |
| Completed bachelors | 20.3% | 27.2% | 30.3% |
| Completed masters | 3.9% | 8.7% | 11.5% |
| Completed professional degree | 0.4% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 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, IA schools is 80%. The average student to teacher ratio is n/a. In Irwin, IA, an average of 95.7% of students have completed 8th grade and an average of 95.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Harlan, IA | 4,917 | 81% | 68.1% |
| Manning, IA | 1,603 | 76% | 57.8% |
| Dow City, IA | 449 | 75% | 55.2% |
| Audubon, IA | 2,125 | 68% | 42.2% |
| Elk Horn, IA | 567 | 67% | 39.6% |
| Irwin, IA | 336 | 80% | 66.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Commodore, PA | 336 | 49% | 1.0% |
| Moro, OR | 336 | 57% | 18.8% |
| Manvel, ND | 336 | 70% | 44.8% |
| Madison, VA | 336 | 77% | 60.4% |
| Keytesville, MO | 337 | 30% | 37.5% |
| Irwin, IA | 336 | 80% | 66.7% |