| Gresham to Cloverleaf (Texas) | 1,830.16 mi (2,945.35 km) |
| Gresham to Cloverly (Maryland) | 2,331.65 mi (3,752.43 km) |
| Gresham to Clovis (California) | 616.16 mi (991.62 km) |
| Gresham to Clovis (New Mexico) | 1,268.56 mi (2,041.54 km) |
| Gresham to Clute (Texas) | 1,857.48 mi (2,989.33 km) |
| Gresham to Coachella (California) | 881.59 mi (1,418.78 km) |
| Gresham to Coalinga (California) | 656.06 mi (1,055.82 km) |
| Gresham to Coamo (Puerto Rico) | 3,704.69 mi (5,962.12 km) |
| Gresham to Coatesville (Pennsylvania) | 2,362.29 mi (3,801.74 km) |
| Gresham to Cockeysville (Maryland) | 2,338.25 mi (3,763.06 km) |
| Gresham to Cocoa (Florida) | 2,549.80 mi (4,103.51 km) |
| Gresham to Cocoa Beach (Florida) | 2,558.56 mi (4,117.60 km) |
| Gresham to Coconut Creek (Florida) | 2,670.67 mi (4,298.03 km) |
| Gresham to Coeur d'Alene (Idaho) | 308.14 mi (495.91 km) |
| Gresham to Cohoes (New York) | 2,386.58 mi (3,840.83 km) |
