| Pioneer, IA (City) |
| Pioneer, SD (Township) |
| Pioneer, OH (Village) |
| Pioneer, KS (Township) |
| Pioneer, KS (Township) |
| Pioneer, LA (Village) |
| Pioneer, KS (Township) |
| Pioneer Community Development District, FL (CDD) |
| Pioneer Township, IA (Township) |
| Pioneer Township, MI (Township) |
| Pioneer Village, KY (City) |
| Pipe Creek, IN (Township) |
| Pipe Creek, IN (Township) |
| Piper City, IL (Village) |
| Piperton, TN (City) |
