This was 29.4 percent lower than the state average of 48.4 percent. In 2020 the total municipality population reached 166.
71.4 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Erhard for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 30 | 28.6 |
| Regular high school diploma | 35 | 33.3 |
| GED or alternative credential | 3 | 2.9 |
| Some college, less than 1 year | 6 | 5.7 |
| Some college, 1 or more years, no degree | 11 | 10.5 |
| Associate's degree | 13 | 12.4 |
| Bachelor's degree | 5 | 4.8 |
| Master's degree | 0 | 0 |
| Professional school degree | 2 | 1.9 |
| Doctorate degree | 0 | 0 |
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