This was 10.8 percent higher than the state average of 40.2 percent. In 2020 the total municipality population reached 4,303.
86.4 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 | 335 | 13.6 |
| Regular high school diploma | 579 | 23.4 |
| GED or alternative credential | 54 | 2.2 |
| Some college, less than 1 year | 33 | 1.3 |
| Some college, 1 or more years, no degree | 210 | 8.5 |
| Associate's degree | 111 | 4.5 |
| Bachelor's degree | 635 | 25.7 |
| Master's degree | 417 | 16.9 |
| Professional school degree | 51 | 2.1 |
| Doctorate degree | 47 | 1.9 |
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