- Port Arthur, Jefferson County, Texas, United States1
- Port Jefferson (N.Y.)1
- Portland (Me.)2
- Portland (Or.)2
- Pottstown, Montgomery County, Pennsylvania, United States1
- Pouney Hall (S.C.)1
- Power House (Historical)4
- Princeton (N.J.)1
- Princeton, Arkansas1
- Princeton, New Jersey, United States2
- Privateer, Sumter County, South Carolina, United States1
- Prospect Hill2
- Providence (R.I.)2
- Providence, Providence County, Rhode Island, United States3
- Purrysburg, Jasper County, South Carolina, United States1
- Quantico (Va.)6
- Quarry Heights (Panama)1
- Quebec (Province)1
- Quebec, Canada1
- Queensland.1