This was 31.8 percent higher than the state average of 37.7 percent. In 2020 the total municipality population reached 20,115.
97.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Rocky River for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 299 | 2.1 |
| Regular high school diploma | 2,091 | 14.4 |
| GED or alternative credential | 92 | 0.6 |
| Some college, less than 1 year | 563 | 3.9 |
| Some college, 1 or more years, no degree | 1,406 | 9.6 |
| Associate's degree | 924 | 6.3 |
| Bachelor's degree | 4,591 | 31.5 |
| Master's degree | 2,932 | 20.1 |
| Professional school degree | 1,318 | 9 |
| Doctorate degree | 354 | 2.4 |
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