This was 9.5 percent lower than the state average of 40.5 percent. In 2020 the total municipality population reached 2,787.
84.4 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Lake Helen for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 289 | 15.6 |
| Regular high school diploma | 456 | 24.6 |
| GED or alternative credential | 178 | 9.6 |
| Some college, less than 1 year | 152 | 8.2 |
| Some college, 1 or more years, no degree | 202 | 10.9 |
| Associate's degree | 220 | 11.9 |
| Bachelor's degree | 269 | 14.5 |
| Master's degree | 73 | 3.9 |
| Professional school degree | 7 | 0.4 |
| Doctorate degree | 4 | 0.2 |
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