This was 16.8 percent lower than the state average of 39.6 percent. In 2020 the total municipality population reached 1,296.
88 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Sand Lake for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 126 | 12 |
| Regular high school diploma | 319 | 30.3 |
| GED or alternative credential | 51 | 4.8 |
| Some college, less than 1 year | 113 | 10.7 |
| Some college, 1 or more years, no degree | 205 | 19.4 |
| Associate's degree | 109 | 10.3 |
| Bachelor's degree | 85 | 8.1 |
| Master's degree | 35 | 3.3 |
| Professional school degree | 11 | 1 |
| Doctorate degree | 0 | 0 |
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