| Index | Grangeville | Idaho | National |
| Average Test Scores | 50% | 47% | 48% |
| Student/Teacher ratio | 16:1 | 17:1 | 16:1 |
| Total public schools | 2 | 446 | 79,221 |
| Total private schools | 1 | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | Grangeville | Idaho | National |
| Completed 8th grade | 83.8% | 85.7% | 84.3% |
| Completed high school | 82.5% | 84.8% | 83.0% |
| Completed some college | 54.0% | 62.4% | 59.4% |
| Completed associate degree | 24.7% | 35.6% | 38.5% |
| Completed bachelors | 15.8% | 26.2% | 30.3% |
| Completed masters | 5.4% | 8.4% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 2 public schools, 1 private schools and n/a post-secondary schools in Grangeville. Using the proficiency score averages, the average test scores for Grangeville, ID schools is 50%. The average student to teacher ratio is 16:1. In Grangeville, ID, an average of 83.8% of students have completed 8th grade and an average of 82.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cottonwood, ID | 1,047 | 62% | 29.2% |
| Kooskia, ID | 578 | 38% | 20.3% |
| Grangeville, ID | 3,195 | 50% | 3.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Haskell, TX | 3,194 | 48% | 0.5% |
| Marion, AL | 3,196 | 21% | 56.3% |
| Felton, CA | 3,197 | 58% | 20.6% |
| Warrior, AL | 3,197 | 50% | 4.7% |
| Mattapoisett Center, MA | 3,193 | 73% | 52.6% |
| Grangeville, ID | 3,195 | 50% | 3.6% |
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