| Index | Granville | Iowa | National |
| Average Test Scores | n/a | 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 | Granville | Iowa | National |
| Completed 8th grade | 93.7% | 89.2% | 84.3% |
| Completed high school | 90.3% | 87.7% | 83.0% |
| Completed some college | 53.7% | 59.8% | 59.4% |
| Completed associate degree | 29.1% | 38.4% | 38.5% |
| Completed bachelors | 16.4% | 27.2% | 30.3% |
| Completed masters | 4.5% | 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 Granville. Using the proficiency score averages, the average test scores for Granville, IA schools is n/a. The average student to teacher ratio is n/a. In Granville, IA, an average of 93.7% of students have completed 8th grade and an average of 90.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hospers, IA | 830 | 89% | 84.4% |
| Orange City, IA | 6,341 | 87% | 81.8% |
| Alton, IA | 1,583 | 81% | 68.8% |
| Hull, IA | 2,033 | 80% | 65.6% |
| Boyden, IA | 928 | 80% | 65.6% |
| Granville, IA | 324 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Holland Patent, NY | 324 | 65% | 35.1% |
| Bowie, AZ | 324 | 25% | 47.9% |
| Fargo, OK | 324 | 30% | 38.0% |
| Donalds, SC | 325 | 58% | 19.8% |
| Rattan, OK | 323 | 31% | 34.7% |
| Granville, IA | 324 | n/a |