| Gresham to Carrollwood (Florida) | 2,481.99 mi (3,994.37 km) |
| Gresham to Carson (California) | 835.81 mi (1,345.10 km) |
| Gresham to Carson City (Nevada) | 459.80 mi (739.98 km) |
| Gresham to Carteret (New Jersey) | 2,421.16 mi (3,896.49 km) |
| Gresham to Cartersville (Georgia) | 2,121.74 mi (3,414.61 km) |
| Gresham to Carthage (Missouri) | 1,558.94 mi (2,508.87 km) |
| Gresham to Cary (Illinois) | 1,705.46 mi (2,744.67 km) |
| Gresham to Cary (North Carolina) | 2,351.83 mi (3,784.91 km) |
| Gresham to Casa de Oro-Mount Helix (California) | 927.11 mi (1,492.05 km) |
| Gresham to Casa Grande (Arizona) | 1,039.18 mi (1,672.39 km) |
| Gresham to Casas Adobes (Arizona) | 1,094.91 mi (1,762.09 km) |
| Gresham to Cascades (Virginia) | 2,314.77 mi (3,725.26 km) |
| Gresham to Casper (Wyoming) | 818.24 mi (1,316.83 km) |
| Gresham to Casselberry (Florida) | 2,511.47 mi (4,041.81 km) |
| Gresham to Castaic (California) | 787.43 mi (1,267.25 km) |
