| Prospect Heights, IL (City) |
| Prospect Park, PA (Borough) |
| Prospect Park, NJ (Borough) |
| Prospect Township, OH (Township) |
| Prosper, SD (Township) |
| Prosper, TX (Town) |
| Prosperity, SC (Town) |
| Prosperity, ND (Township) |
| Prosser, WA (City) |
| Prosser, NE (Village) |
| Protection, KS (City) |
| Protection, KS (Township) |
| Protivin, IA (City) |
| Provencal, LA (Village) |
| Providence, RI (City) |
