| Place Name | Dorchester |
| Place Type | Town |
| ZIP Code(s) | 03241 03266 03282 03741 03768 |
| County | Grafton County |
| Area Code(s) | 603 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 460 |
| Majority Ethnicity | White 99.24% |
| Metro/Micro Stats Area | Lebanon, NH-VT |
| US Congressional District(s) | New Hampshire 2nd |
| State House Districts | Grafton 11 |
| State Senate Districts | 2 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.24% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0.25% |
| Native American | 0.51% |
| Hawaiin/Pacific Islander | 0% |