This was 3.9 percent higher than the state average of 41.1 percent. In 2020 the total municipality population reached 161.
99 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Rock Falls for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1 | 1 |
| Regular high school diploma | 31 | 31 |
| GED or alternative credential | 5 | 5 |
| Some college, less than 1 year | 0 | 0 |
| Some college, 1 or more years, no degree | 18 | 18 |
| Associate's degree | 32 | 32 |
| Bachelor's degree | 7 | 7 |
| Master's degree | 4 | 4 |
| Professional school degree | 2 | 2 |
| Doctorate degree | 0 | 0 |

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