This was 19.2 percent lower than the state average of 47.4 percent. In 2020 the total municipality population reached 396.
83.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Iron Gate for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 47 | 16.2 |
| Regular high school diploma | 108 | 37.1 |
| GED or alternative credential | 15 | 5.2 |
| Some college, less than 1 year | 15 | 5.2 |
| Some college, 1 or more years, no degree | 24 | 8.2 |
| Associate's degree | 48 | 16.5 |
| Bachelor's degree | 27 | 9.3 |
| Master's degree | 4 | 1.4 |
| Professional school degree | 2 | 0.7 |
| Doctorate degree | 1 | 0.3 |
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