| Place Name | Plainfield Township |
| Place Type | Township |
| County | Northampton County |
| Area Code(s) | 484,610,272,570 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 6,255 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Allentown-Bethlehem-Easton, PA-NJ |
| US Congressional District(s) | Pennsylvania 15thPennsylvania 17th |
| State House Districts | 138 |
| State Senate Districts | 40 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |