This was 17.9 percent lower than the state average of 42.7 percent. In 2020 the total municipality population reached 457.
90.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Effingham for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 32 | 9.2 |
| Regular high school diploma | 118 | 34 |
| GED or alternative credential | 14 | 4 |
| Some college, less than 1 year | 28 | 8.1 |
| Some college, 1 or more years, no degree | 69 | 19.9 |
| Associate's degree | 43 | 12.4 |
| Bachelor's degree | 28 | 8.1 |
| Master's degree | 15 | 4.3 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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