This was 3.7 percent lower than the state average of 43.7 percent. In 2020 the total municipality population reached 10,122.
94.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Highland for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 379 | 5.2 |
| Regular high school diploma | 1,976 | 27 |
| GED or alternative credential | 108 | 1.5 |
| Some college, less than 1 year | 504 | 6.9 |
| Some college, 1 or more years, no degree | 1,423 | 19.5 |
| Associate's degree | 767 | 10.5 |
| Bachelor's degree | 1,527 | 20.9 |
| Master's degree | 480 | 6.6 |
| Professional school degree | 96 | 1.3 |
| Doctorate degree | 51 | 0.7 |
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