- Packard
- Paha
- Palm Lake
- Paxton
- Pifer
- Pizarro
- Providence
- Pearl
- Pierce
- Port of Kennewick
- Parkwood Mobile Home Community
- Peters Mobile Home Park
- Port Angeles East
- Port Crescent
- Port Williams
- Pete Moore Island
- Pigeon Springs
- Pleasant Hill
- Parker Landing Light
- Parkersville
- Pine Grove
- Pioneer
- Proebstel
- Patit
- Powers
- Pollard
- Pasco West
- Perry
- Pataha
- Peola