This was 10.8 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 494.
78.3 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Avondale for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 83 | 21.7 |
| Regular high school diploma | 81 | 21.2 |
| GED or alternative credential | 11 | 2.9 |
| Some college, less than 1 year | 23 | 6 |
| Some college, 1 or more years, no degree | 80 | 20.9 |
| Associate's degree | 33 | 8.6 |
| Bachelor's degree | 64 | 16.8 |
| Master's degree | 4 | 1 |
| Professional school degree | 3 | 0.8 |
| Doctorate degree | 0 | 0 |
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