This was 13.3 percent lower than the state average of 40.2 percent. In 2020 the total municipality population reached 8,107.
81.2 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 | 922 | 18.8 |
| Regular high school diploma | 996 | 20.3 |
| GED or alternative credential | 373 | 7.6 |
| Some college, less than 1 year | 403 | 8.2 |
| Some college, 1 or more years, no degree | 884 | 18 |
| Associate's degree | 375 | 7.7 |
| Bachelor's degree | 496 | 10.1 |
| Master's degree | 291 | 5.9 |
| Professional school degree | 66 | 1.3 |
| Doctorate degree | 92 | 1.9 |
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