- Pond
- Ponderosa
- Ponderosa Basin
- Ponderosa Palisades
- Ponderosa Park
- Pondosa
- Pope
- Pope Valley
- Poplar
- Poplar-Cotton Center
- Porphyry
- Port Chicago
- Port Costa
- Port Hueneme
- Port Kenyon
- Port Orford
- Port San Luis
- Port Watsonvile
- Portal Inn
- Porter
- Porterville
- Portico Mobile Home and Garden Park
- Portola
- Portola Hills
- Portola Valley
- Portuguese Bend
- Posey
- Poso Park
- Posts
- Potrero