| Index | Gilman | Iowa | National |
| Average Test Scores | 71% | 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 | Gilman | Iowa | National |
| Completed 8th grade | 86.6% | 89.2% | 84.3% |
| Completed high school | 86.6% | 87.7% | 83.0% |
| Completed some college | 46.5% | 59.8% | 59.4% |
| Completed associate degree | 22.5% | 38.4% | 38.5% |
| Completed bachelors | 8.8% | 27.2% | 30.3% |
| Completed masters | 1.7% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 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 Gilman. Using the proficiency score averages, the average test scores for Gilman, IA schools is 71%. The average student to teacher ratio is n/a. In Gilman, IA, an average of 86.6% of students have completed 8th grade and an average of 86.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Laurel, IA | 200 | 80% | 66.7% |
| Grinnell, IA | 9,424 | 79% | 64.6% |
| Le Grand, IA | 873 | 75% | 56.3% |
| Garwin, IA | 662 | 70% | 44.8% |
| Newton, IA | 15,563 | 69% | 43.6% |
| Gilman, IA | 555 | 71% | 47.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Maringouin, LA | 555 | 75% | 55.2% |
| Fithian, IL | 555 | 25% | 49.0% |
| Niangua, MO | 555 | 28% | 41.3% |
| Hayden, IN | 555 | 42% | 12.5% |
| Napaskiak, AK | 555 | 7% | 86.5% |
| Gilman, IA | 555 | 71% | 47.9% |
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