| Place Name | South Duxbury |
| Place Type | Census Designated Place |
| ZIP Code(s) | 02332 |
| County | Plymouth County |
| Area Code(s) | 339,781 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 3,722 |
| Population Growth Rate (2010-19) | 3.07% |
| Majority Ethnicity | White 97.39% |
| Metro/Micro Stats Area | Boston-Cambridge-Newton, MA-NH |
| US Congressional District(s) | Massachusetts 9th |
| State House Districts | 6th Plymouth,12th Plymouth |
| State Senate Districts | Plymouth and Norfolk |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.39% |
| African American | 0.03% |
| Hispanic | 0.3% |
| Asian | 1.74% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.54% |