| Place Name | Greenville Junction |
| Place Type | Unincorporated |
| ZIP Code(s) | 04441 |
| County | Piscataquis County |
| Area Code(s) | 207 |
| Timezone | Eastern Daylight Time (EDT) |
| Population () | |
| US Congressional District(s) | Maine 2nd |
| State House Districts | 30 |
| State Senate Districts | 4 |