This was 16.3 percent lower than the state average of 41 percent. In 2020 the total municipality population reached 3,548.
92.1 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in State Line for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 188 | 7.9 |
| Regular high school diploma | 1,023 | 42.9 |
| GED or alternative credential | 203 | 8.5 |
| Some college, less than 1 year | 164 | 6.9 |
| Some college, 1 or more years, no degree | 216 | 9.1 |
| Associate's degree | 132 | 5.5 |
| Bachelor's degree | 285 | 12 |
| Master's degree | 133 | 5.6 |
| Professional school degree | 38 | 1.6 |
| Doctorate degree | 0 | 0 |
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