This was 4.4 percent higher than the state average of 43.7 percent. In 2020 the total municipality population reached 18,235.
90.4 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Round Lake for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1,107 | 9.6 |
| Regular high school diploma | 2,050 | 17.8 |
| GED or alternative credential | 289 | 2.5 |
| Some college, less than 1 year | 837 | 7.3 |
| Some college, 1 or more years, no degree | 1,697 | 14.7 |
| Associate's degree | 896 | 7.8 |
| Bachelor's degree | 3,374 | 29.3 |
| Master's degree | 1,082 | 9.4 |
| Professional school degree | 128 | 1.1 |
| Doctorate degree | 68 | 0.6 |
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