- Peru
- Peruque
- Peruque Island
- Peters Ford
- Petersburg
- Petersburg
- Petersville
- Pettys Hill
- Pevely
- Pharrs Island
- Phelps
- Phelps City
- Phenix
- Philadelphia
- Phillipsburg
- Pickel
- Pickering
- Piedmont
- Pierce City
- Pierpont
- Pilgrim
- Pilot Grove
- Pilot Knob
- Pin Hook
- Pin Oak Community
- Pinckney
- Pine City
- Pine Crest
- Pine Lawn
- Pine Ridge