This was 2.9 percent lower than the state average of 41.8 percent. In 2020 the total municipality population reached 1,195.
93.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Iola for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 57 | 6.5 |
| Regular high school diploma | 254 | 29.1 |
| GED or alternative credential | 69 | 7.9 |
| Some college, less than 1 year | 55 | 6.3 |
| Some college, 1 or more years, no degree | 99 | 11.3 |
| Associate's degree | 130 | 14.9 |
| Bachelor's degree | 142 | 16.2 |
| Master's degree | 37 | 4.2 |
| Professional school degree | 31 | 3.5 |
| Doctorate degree | 0 | 0 |
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