This was 27.1 percent lower than the state average of 38.9 percent. In 2020 the total municipality population reached 2,464.
76.8 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Timmonsville for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 407 | 23.2 |
| Regular high school diploma | 759 | 43.3 |
| GED or alternative credential | 11 | 0.6 |
| Some college, less than 1 year | 105 | 6 |
| Some college, 1 or more years, no degree | 264 | 15.1 |
| Associate's degree | 79 | 4.5 |
| Bachelor's degree | 115 | 6.6 |
| Master's degree | 12 | 0.7 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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