Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Pedro | Pedro, OH |
| Ohio | Peebles | Peebles, OH |
| Ohio | Pemberton | Pemberton, OH |
| Ohio | Pemberville | Pemberville, OH |
| Ohio | Peninsula | Peninsula, OH |
| Ohio | Perry | Perry, OH |
| Ohio | Perrysburg | Perrysburg, OH |
| Ohio | Perrysville | Perrysville, OH |
| Ohio | Petersburg | Petersburg, OH |
| Ohio | Pettisville | Pettisville, OH |
| Ohio | Phillipsburg | Phillipsburg, OH |
| Ohio | Philo | Philo, OH |
| Ohio | Pickerington | Pickerington, OH |
| Ohio | Piedmont | Piedmont, OH |
| Ohio | Pierpont | Pierpont, OH |
| Ohio | Piketon | Piketon, OH |
| Ohio | Piney Fork | Piney Fork, OH |
| Ohio | Pioneer | Pioneer, OH |
| Ohio | Piqua | Piqua, OH |
| Ohio | Pitsburg | Pitsburg, OH |
| Ohio | Plain City | Plain City, OH |
| Ohio | Plainfield | Plainfield, OH |
| Ohio | Pleasant City | Pleasant City, OH |
| Ohio | Pleasant Hill | Pleasant Hill, OH |
| Ohio | Pleasant Plain | Pleasant Plain, OH |