This was 21.8 percent lower than the state average of 38.5 percent. In 2020 the total municipality population reached 570.
56.3 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Roberts for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 165 | 43.7 |
| Regular high school diploma | 84 | 22.2 |
| GED or alternative credential | 15 | 4 |
| Some college, less than 1 year | 20 | 5.3 |
| Some college, 1 or more years, no degree | 31 | 8.2 |
| Associate's degree | 7 | 1.9 |
| Bachelor's degree | 46 | 12.2 |
| Master's degree | 10 | 2.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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