| Place Name | Jefferson |
| Place Type | Town |
| ZIP Code(s) | 04348 |
| County | Lincoln County |
| Area Code(s) | 207 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,541 |
| Majority Ethnicity | White 98.2% |
| US Congressional District(s) | Maine 1st |
| State House Districts | 88 |
| State Senate Districts | 13 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.2% |
| African American | 0.04% |
| Hispanic | 0% |
| Asian | 0.37% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.39% |