This was 27.9 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 2,057.
89.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Earlville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 132 | 10.1 |
| Regular high school diploma | 499 | 38.3 |
| GED or alternative credential | 134 | 10.3 |
| Some college, less than 1 year | 136 | 10.4 |
| Some college, 1 or more years, no degree | 197 | 15.1 |
| Associate's degree | 110 | 8.4 |
| Bachelor's degree | 68 | 5.2 |
| Master's degree | 28 | 2.1 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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