| Place Name | Plainfield |
| Place Type | Census Designated Place |
| ZIP Code(s) | 03781 |
| County | Sullivan County |
| Area Code(s) | 603 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 189 |
| Population Growth Rate (2010-19) | -13.17% |
| Majority Ethnicity | White 69.23% |
| Metro/Micro Stats Area | Lebanon, NH-VT |
| US Congressional District(s) | New Hampshire 2nd |
| State House Districts | Sullivan 1 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 69.23% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 30.77% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |