This was 17.3 percent higher than the state average of 43.7 percent. In 2020 the total municipality population reached 19,912.
95.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Lake Zurich for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 553 | 4.1 |
| Regular high school diploma | 2,027 | 15.2 |
| GED or alternative credential | 80 | 0.6 |
| Some college, less than 1 year | 766 | 5.7 |
| Some college, 1 or more years, no degree | 1,786 | 13.4 |
| Associate's degree | 1,015 | 7.6 |
| Bachelor's degree | 4,339 | 32.4 |
| Master's degree | 2,398 | 17.9 |
| Professional school degree | 192 | 1.4 |
| Doctorate degree | 221 | 1.7 |
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