| Plainfield Town, WI (Town) |
| Plainfield Township, PA (Township) |
| Plainfield Township, MI (Township) |
| Plainfield Township, MI (Township) |
| Plainfield Township, IL (Township) |
| Plainfield Village, WI (Village) |
| Plains, MT (Town) |
| Plains, GA (City) |
| Plains, TX (Town) |
| Plains City, KS (City) |
| Plains Township, PA (Township) |
| Plainsboro Township, NJ (Township) |
| Plainview, SD (Township) |
| Plainview, TN (City) |
| Plainview, NE (City) |
