| Place Name | Plainfield |
| Place Type | Town |
| ZIP Code(s) | 01070 |
| County | Hampshire County |
| Area Code(s) | 413 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 676 |
| Majority Ethnicity | White 96.5% |
| Metro/Micro Stats Area | Springfield, MA |
| US Congressional District(s) | Massachusetts 1st |
| State House Districts | 1st Franklin |
| State Senate Districts | Berkshire, Hampshire, Franklin and Hampden |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.5% |
| African American | 0.16% |
| Hispanic | 0.16% |
| Asian | 1.43% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.75% |