- Penley Corner
- Plummer Mill
- Poland
- Poland Spring
- Promised Land
- Parent
- Parkhurst
- Patten Junction
- Pauls
- Pelletier Deadwater Islands
- Phair
- Pierre
- Pine Island
- Plourde Mill
- Powers Corner
- Presque Isle Junction
- Pride
- Papoose Island
- Peaks Island
- Pennellville
- Penny Island
- Pettingill Island
- Pike Corner
- Pine Island
- Pine Point
- Pine Point Beach
- Pinkham Island
- Pleasant Hill
- Pleasant Hill
- Pleasant Hill