| Index | Grannis | Arkansas | National |
| Average Test Scores | n/a | 45% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 860 | 79,221 |
| Total private schools | n/a | 165 | 24,874 |
| Total post-secondary schools | n/a | 98 | 7,963 |
| Index | Grannis | Arkansas | National |
| Completed 8th grade | 66.9% | 80.7% | 84.3% |
| Completed high school | 65.1% | 79.0% | 83.0% |
| Completed some college | 32.5% | 50.5% | 59.4% |
| Completed associate degree | 14.3% | 27.9% | 38.5% |
| Completed bachelors | 11.7% | 21.5% | 30.3% |
| Completed masters | 3.8% | 7.6% | 11.5% |
| Completed professional degree | 1.0% | 2.2% | 3.3% |
| Completed doctorate | 0.4% | 0.9% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grannis. Using the proficiency score averages, the average test scores for Grannis, AR schools is n/a. The average student to teacher ratio is n/a. In Grannis, AR, an average of 66.9% of students have completed 8th grade and an average of 65.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Wickes, AR | 1,133 | 57% | 18.8% |
| De Queen, AR | 6,499 | 50% | 3.8% |
| Vandervoort, AR | 178 | 50% | 3.1% |
| Cove, AR | 299 | 36% | 26.0% |
| Eagletown, OK | 503 | 32% | 32.8% |
| Grannis, AR | 546 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wrightstown, NJ | 546 | 49% | 1.4% |
| Pettisville, OH | 546 | 81% | 68.2% |
| Marble, NC | 546 | 15% | 68.8% |
| Valier, MT | 546 | 42% | 12.5% |
| Dayton, ID | 546 | 67% | 39.9% |
| Grannis, AR | 546 | n/a |
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