This was 40.3 percent higher than the state average of 43.7 percent. In 2020 the total municipality population reached 5,540.
99 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Lake Bluff for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 38 | 1 |
| Regular high school diploma | 245 | 6.6 |
| GED or alternative credential | 14 | 0.4 |
| Some college, less than 1 year | 71 | 1.9 |
| Some college, 1 or more years, no degree | 227 | 6.1 |
| Associate's degree | 111 | 3 |
| Bachelor's degree | 1,488 | 40.1 |
| Master's degree | 854 | 23 |
| Professional school degree | 490 | 13.2 |
| Doctorate degree | 176 | 4.7 |
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