| Place Name | South Thomaston |
| Place Type | Town |
| ZIP Code(s) | 04858 |
| County | Knox County |
| Area Code(s) | 207 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 1,384 |
| Majority Ethnicity | White 98.26% |
| US Congressional District(s) | Maine 1st |
| State House Districts | 92 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.26% |
| African American | 0% |
| Hispanic | 0.36% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.38% |