| Place Name | Northfield |
| Place Type | Town |
| ZIP Code(s) | 04623 04654 04686 |
| County | Washington County |
| Area Code(s) | 207 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 308 |
| Majority Ethnicity | White 89.7% |
| US Congressional District(s) | Maine 2nd |
| State House Districts | 137 |
| State Senate Districts | 6 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.7% |
| African American | 0% |
| Hispanic | 7.64% |
| Asian | 0.33% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.33% |