- Polaris
- Polebridge
- Polson
- Pompeys Pillar
- Pondera Colony
- Ponderosa Mobile Home Park
- Ponderosa Pines
- Ponderosa Trailer Court
- Pony
- Poplar
- Poplars Trailer Court
- Portage
- Portal
- Porters Corner
- Post Creek
- Posts Trailer Court
- Potomac
- Potts Trailer Court
- Powderville
- Power
- Powers
- Pownal
- Prairie Mobile Village
- Pray
- Preston
- Primrose
- Princeton
- Prison Farm
- Proctor
- Pryor