This was 22.2 percent lower than the state average of 46.3 percent. In 2020 the total municipality population reached 1,127.
92.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Afton for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 54 | 7.1 |
| Regular high school diploma | 332 | 43.4 |
| GED or alternative credential | 49 | 6.4 |
| Some college, less than 1 year | 42 | 5.5 |
| Some college, 1 or more years, no degree | 104 | 13.6 |
| Associate's degree | 75 | 9.8 |
| Bachelor's degree | 70 | 9.2 |
| Master's degree | 29 | 3.8 |
| Professional school degree | 8 | 1 |
| Doctorate degree | 2 | 0.3 |
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