This was 23.6 percent lower than the state average of 34.4 percent. In 2020 the total municipality population reached 43.
83.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Gerty for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 6 | 16.2 |
| Regular high school diploma | 16 | 43.2 |
| GED or alternative credential | 0 | 0 |
| Some college, less than 1 year | 5 | 13.5 |
| Some college, 1 or more years, no degree | 6 | 16.2 |
| Associate's degree | 3 | 8.1 |
| Bachelor's degree | 0 | 0 |
| Master's degree | 1 | 2.7 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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