This was 11.3 percent higher than the state average of 42.7 percent. In 2020 the total municipality population reached 26,090.
92.5 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Hercules city for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 1,409 | 7.5 |
| Regular high school diploma | 2,758 | 14.6 |
| GED or alternative credential | 380 | 2 |
| Some college, less than 1 year | 782 | 4.1 |
| Some college, 1 or more years, no degree | 3,357 | 17.8 |
| Associate's degree | 1,902 | 10.1 |
| Bachelor's degree | 5,509 | 29.2 |
| Master's degree | 1,877 | 9.9 |
| Professional school degree | 519 | 2.7 |
| Doctorate degree | 395 | 2.1 |
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