| Portishead to Cicero (Illinois) | 3,853.75 mi (6,202.01 km) |
| Portishead to Cimarron Hills (Colorado) | 4,629.75 mi (7,450.87 km) |
| Portishead to Cincinnati (Ohio) | 3,849.77 mi (6,195.61 km) |
| Portishead to Cinco Ranch (Texas) | 4,761.15 mi (7,662.32 km) |
| Portishead to Circleville (Ohio) | 3,765.54 mi (6,060.05 km) |
| Portishead to Citrus (California) | 5,340.59 mi (8,594.84 km) |
| Portishead to Citrus Heights (California) | 5,189.24 mi (8,351.28 km) |
| Portishead to Citrus Park (Florida) | 4,301.52 mi (6,922.63 km) |
| Portishead to Claiborne (Louisiana) | 4,476.24 mi (7,203.80 km) |
| Portishead to Claremont (California) | 5,334.28 mi (8,584.69 km) |
| Portishead to Claremont (New Hampshire) | 3,174.46 mi (5,108.80 km) |
| Portishead to Claremore (Oklahoma) | 4,421.62 mi (7,115.92 km) |
| Portishead to Clarksburg (Maryland) | 3,552.43 mi (5,717.09 km) |
| Portishead to Clarksburg (West Virginia) | 3,674.61 mi (5,913.71 km) |
| Portishead to Clarksdale (Mississippi) | 4,328.67 mi (6,966.32 km) |
