This was 1.9 percent higher than the state average of 40.2 percent. In 2020 the total municipality population reached 19,923.
92.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Snellville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1,077 | 7.5 |
| Regular high school diploma | 3,167 | 22 |
| GED or alternative credential | 499 | 3.5 |
| Some college, less than 1 year | 754 | 5.2 |
| Some college, 1 or more years, no degree | 2,834 | 19.7 |
| Associate's degree | 1,077 | 7.5 |
| Bachelor's degree | 3,709 | 25.8 |
| Master's degree | 957 | 6.6 |
| Professional school degree | 199 | 1.4 |
| Doctorate degree | 121 | 0.8 |
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