| Johnston to Pell City (Alabama) | 693.66 mi (1,116.34 km) |
| Johnston to Pella (Iowa) | 46.05 mi (74.11 km) |
| Johnston to Pembroke Pines (Florida) | 1,324.32 mi (2,131.29 km) |
| Johnston to Pendleton (Oregon) | 1,278.21 mi (2,057.09 km) |
| Johnston to Pensacola (Florida) | 857.97 mi (1,380.76 km) |
| Johnston to Peoria (Arizona) | 1,149.19 mi (1,849.44 km) |
| Johnston to Peoria (Illinois) | 223.11 mi (359.05 km) |
| Johnston to Perris (California) | 1,389.47 mi (2,236.13 km) |
| Johnston to Perry (Georgia) | 840.96 mi (1,353.39 km) |
| Johnston to Perry Hall (Maryland) | 917.43 mi (1,476.46 km) |
| Johnston to Perrysburg (Ohio) | 520.61 mi (837.85 km) |
| Johnston to Perth Amboy (New Jersey) | 1,013.71 mi (1,631.41 km) |
| Johnston to Peru (Indiana) | 402.47 mi (647.71 km) |
| Johnston to Petal (Mississippi) | 756.55 mi (1,217.54 km) |
| Johnston to Petaluma (California) | 1,541.57 mi (2,480.91 km) |
