This was 21.1 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 354.
96.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Rock City village for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 7 | 3.2 |
| Regular high school diploma | 91 | 41.9 |
| GED or alternative credential | 8 | 3.7 |
| Some college, less than 1 year | 37 | 17.1 |
| Some college, 1 or more years, no degree | 25 | 11.5 |
| Associate's degree | 22 | 10.1 |
| Bachelor's degree | 10 | 4.6 |
| Master's degree | 17 | 7.8 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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