- Parkman Corner
- Peppermint Corner
- Perkins Hill
- Pest Island
- Phillips Park
- Picnic Island
- Pierce Island
- Pine Grove Park
- Piscataqua
- Plaice Cove
- Portsmouth Mobile Homes
- Portsmouth Plains
- Powwow River
- Prescott Corner
- Parker
- Perham Corner
- Ponemah
- Potash Corner
- Pratt
- Pages Corner
- Pages Corner
- Pearls Corner
- Pine Cliff
- Potter Place
- Pickering
- Pine Island
- Place
- Puckershire
- Plainfield
- Plymouth