- Penny Island
- Penoyar
- Penryn
- Pentland
- Pentz
- Penvir
- Pepper Corner
- Peppermint Creek
- Pepperwood
- Pepperwood Grove
- Peral
- Perez
- Perris
- Perrys Corner
- Pescadero
- Pescadero Rocks
- Petaluma
- Pete Hoff Place
- Peter Pan's Flight
- Peters
- Peterson Mill
- Peterson Place
- Petrolia
- Pettit Place
- Pettyjohn Place
- Pewetole Island
- Pfeiffer Rock
- Phelan
- Phelan Island
- Phelps Corner