This was 14.7 percent lower than the state average of 41.8 percent. In 2020 the total municipality population reached 109.
89.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Mason for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 6 | 10.2 |
| Regular high school diploma | 21 | 35.6 |
| GED or alternative credential | 0 | 0 |
| Some college, less than 1 year | 7 | 11.9 |
| Some college, 1 or more years, no degree | 9 | 15.3 |
| Associate's degree | 8 | 13.6 |
| Bachelor's degree | 4 | 6.8 |
| Master's degree | 4 | 6.8 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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