This was 26.8 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 987.
86.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Milledgeville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 86 | 13.5 |
| Regular high school diploma | 247 | 38.7 |
| GED or alternative credential | 21 | 3.3 |
| Some college, less than 1 year | 104 | 16.3 |
| Some college, 1 or more years, no degree | 73 | 11.4 |
| Associate's degree | 40 | 6.3 |
| Bachelor's degree | 42 | 6.6 |
| Master's degree | 24 | 3.8 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 2 | 0.3 |
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