- Pioneer
- Pioneer
- Pioneer Point
- Pioneertown
- Pippin Corner
- Piru
- Pisgah
- Pismo Beach
- Pittsburg
- Pittville
- Pixley
- Pizona
- Placentia
- Placerville
- Plainfield
- Plainsburg
- Plainview
- Planada
- Plano
- Plaskett
- Plaskett Rock
- Plasse
- Plaster City
- Platina
- Playa del Rey
- Pleasant Grove
- Pleasant Hill
- Pleasant Valley
- Pleasant View
- Pleasanton