| Index | Grayson | Kentucky | National |
| Average Test Scores | 61% | 48% | 48% |
| Student/Teacher ratio | 15:1 | 16:1 | 16:1 |
| Total public schools | 4 | 1,157 | 79,221 |
| Total private schools | 1 | 298 | 24,874 |
| Total post-secondary schools | 1 | 130 | 7,963 |
| Index | Grayson | Kentucky | National |
| Completed 8th grade | 83.0% | 81.0% | 84.3% |
| Completed high school | 78.4% | 77.8% | 83.0% |
| Completed some college | 41.9% | 51.3% | 59.4% |
| Completed associate degree | 18.6% | 30.5% | 38.5% |
| Completed bachelors | 16.2% | 22.7% | 30.3% |
| Completed masters | 5.9% | 9.3% | 11.5% |
| Completed professional degree | 1.4% | 2.6% | 3.3% |
| Completed doctorate | 0.7% | 0.9% | 1.3% |
There are a total of 4 public schools, 1 private schools and 1 post-secondary schools in Grayson. Using the proficiency score averages, the average test scores for Grayson, KY schools is 61%. The average student to teacher ratio is 15:1. In Grayson, KY, an average of 83.0% of students have completed 8th grade and an average of 78.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Flatwoods, KY | 7,143 | 67% | 39.6% |
| Russell, KY | 3,257 | 64% | 32.3% |
| Ironton, OH | 10,749 | 63% | 30.4% |
| Olive Hill, KY | 1,568 | 53% | 9.4% |
| Raceland, KY | 2,215 | 49% | 2.1% |
| Grayson, KY | 3,910 | 61% | 26.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Nichols Hills, OK | 3,910 | 42% | 12.5% |
| Washington Park, IL | 3,909 | 19% | 60.4% |
| Freeburg, IL | 3,911 | 55% | 14.1% |
| Baden, PA | 3,911 | 55% | 15.1% |
| Huxley, IA | 3,912 | 83% | 71.9% |
| Grayson, KY | 3,910 | 61% | 26.0% |
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