| Gresham to Point Pleasant (New Jersey) | 2,443.45 mi (3,932.35 km) |
| Gresham to Pomona (California) | 828.40 mi (1,333.17 km) |
| Gresham to Pompano Beach (Florida) | 2,674.85 mi (4,304.75 km) |
| Gresham to Pompton Lakes (New Jersey) | 2,406.60 mi (3,873.05 km) |
| Gresham to Pompton Plains (New Jersey) | 2,406.54 mi (3,872.94 km) |
| Gresham to Ponca City (Oklahoma) | 1,445.30 mi (2,325.98 km) |
| Gresham to Ponce (Puerto Rico) | 3,695.53 mi (5,947.38 km) |
| Gresham to Pontiac (Illinois) | 1,718.90 mi (2,766.30 km) |
| Gresham to Pontiac (Michigan) | 1,934.11 mi (3,112.66 km) |
| Gresham to Pooler (Georgia) | 2,371.30 mi (3,816.24 km) |
| Gresham to Poplar Bluff (Missouri) | 1,758.73 mi (2,830.41 km) |
| Gresham to Poquoson (Virginia) | 2,425.27 mi (3,903.09 km) |
| Gresham to Port Angeles (Washington) | 186.74 mi (300.53 km) |
| Gresham to Port Arthur (Texas) | 1,881.17 mi (3,027.45 km) |
| Gresham to Port Charlotte (Florida) | 2,548.44 mi (4,101.32 km) |
