This was 23.4 percent lower than the state average of 38 percent. In 2020 the total municipality population reached 575.
82.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Irondale for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 60 | 17.5 |
| Regular high school diploma | 80 | 23.3 |
| GED or alternative credential | 14 | 4.1 |
| Some college, less than 1 year | 71 | 20.7 |
| Some college, 1 or more years, no degree | 68 | 19.8 |
| Associate's degree | 33 | 9.6 |
| Bachelor's degree | 16 | 4.7 |
| Master's degree | 1 | 0.3 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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