This was 6 percent lower than the state average of 41.9 percent. In 2020 the total municipality population reached 2,973.
91.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Granite Quarry for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 155 | 8.2 |
| Regular high school diploma | 587 | 30.9 |
| GED or alternative credential | 149 | 7.8 |
| Some college, less than 1 year | 115 | 6.1 |
| Some college, 1 or more years, no degree | 211 | 11.1 |
| Associate's degree | 314 | 16.5 |
| Bachelor's degree | 302 | 15.9 |
| Master's degree | 42 | 2.2 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 24 | 1.3 |
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