This was 0.4 percent higher than the state average of 42.7 percent. In 2020 the total municipality population reached 4,020.
92.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Granite Hills CDP for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 219 | 7.1 |
| Regular high school diploma | 508 | 16.5 |
| GED or alternative credential | 133 | 4.3 |
| Some college, less than 1 year | 320 | 10.4 |
| Some college, 1 or more years, no degree | 572 | 18.6 |
| Associate's degree | 343 | 11.1 |
| Bachelor's degree | 664 | 21.6 |
| Master's degree | 282 | 9.2 |
| Professional school degree | 34 | 1.1 |
| Doctorate degree | 4 | 0.1 |
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