| Index | Grayson | Oklahoma | National |
| Average Test Scores | n/a | 32% | 48% |
| Student/Teacher ratio | n/a | 22:1 | 16:1 |
| Total public schools | n/a | 1,346 | 79,221 |
| Total private schools | n/a | 159 | 24,874 |
| Total post-secondary schools | n/a | 178 | 7,963 |
| Index | Grayson | Oklahoma | National |
| Completed 8th grade | 86.7% | 83.5% | 84.3% |
| Completed high school | 82.7% | 82.2% | 83.0% |
| Completed some college | 46.9% | 55.6% | 59.4% |
| Completed associate degree | 18.4% | 31.9% | 38.5% |
| Completed bachelors | 12.2% | 24.5% | 30.3% |
| Completed masters | 3.1% | 8.1% | 11.5% |
| Completed professional degree | 1.0% | 2.3% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grayson. Using the proficiency score averages, the average test scores for Grayson, OK schools is n/a. The average student to teacher ratio is n/a. In Grayson, OK, an average of 86.7% of students have completed 8th grade and an average of 82.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Morris, OK | 1,739 | 35% | 27.1% |
| Schulter, OK | 556 | 29% | 39.1% |
| Henryetta, OK | 5,586 | 24% | 50.3% |
| Weleetka, OK | 1,012 | 22% | 53.3% |
| Okmulgee, OK | 11,768 | 22% | 55.2% |
| Grayson, OK | 178 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Gaylesville, AL | 178 | 40% | 17.7% |
| Vandervoort, AR | 178 | 50% | 3.1% |
| Mount Vernon, AR | 178 | 50% | 3.1% |
| Kaktovik, AK | 178 | 30% | 37.5% |
| Patch Grove, WI | 179 | 41% | 14.6% |
| Grayson, OK | 178 | n/a |
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