| Gresham to Cadillac (Michigan) | 1,798.77 mi (2,894.84 km) |
| Gresham to Caguas (Puerto Rico) | 3,712.71 mi (5,975.02 km) |
| Gresham to Cahokia (Illinois) | 1,710.72 mi (2,753.13 km) |
| Gresham to Calabasas (California) | 810.08 mi (1,303.70 km) |
| Gresham to Caldwell (Idaho) | 312.06 mi (502.21 km) |
| Gresham to Caledonia (Wisconsin) | 1,710.38 mi (2,752.59 km) |
| Gresham to Calera (Alabama) | 2,069.20 mi (3,330.06 km) |
| Gresham to Calexico (California) | 959.81 mi (1,544.66 km) |
| Gresham to Calhoun (Georgia) | 2,102.90 mi (3,384.29 km) |
| Gresham to California (Maryland) | 2,380.99 mi (3,831.83 km) |
| Gresham to California City (California) | 753.82 mi (1,213.15 km) |
| Gresham to Callaway (Florida) | 2,248.98 mi (3,619.38 km) |
| Gresham to Calumet City (Illinois) | 1,753.42 mi (2,821.85 km) |
| Gresham to Calverton (Maryland) | 2,335.57 mi (3,758.74 km) |
| Gresham to Camano (Washington) | 185.48 mi (298.50 km) |
