This was 3.2 percent lower than the state average of 31.4 percent. In 2020 the total municipality population reached 568.
77.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Grayson for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 72 | 22.3 |
| Regular high school diploma | 92 | 28.5 |
| GED or alternative credential | 10 | 3.1 |
| Some college, less than 1 year | 19 | 5.9 |
| Some college, 1 or more years, no degree | 39 | 12.1 |
| Associate's degree | 46 | 14.2 |
| Bachelor's degree | 30 | 9.3 |
| Master's degree | 15 | 4.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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