This was 26.5 percent lower than the state average of 43.2 percent. In 2020 the total municipality population reached 83.
97 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Brock for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 2 | 3 |
| Regular high school diploma | 23 | 34.8 |
| GED or alternative credential | 11 | 16.7 |
| Some college, less than 1 year | 7 | 10.6 |
| Some college, 1 or more years, no degree | 12 | 18.2 |
| Associate's degree | 2 | 3 |
| Bachelor's degree | 9 | 13.6 |
| Master's degree | 0 | 0 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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