| Risca to Crest Hill (Illinois) | 3,863.41 mi (6,217.56 km) |
| Risca to Crestview (Florida) | 4,320.55 mi (6,953.26 km) |
| Risca to Crestwood (Illinois) | 3,845.66 mi (6,188.99 km) |
| Risca to Crestwood (Missouri) | 4,092.79 mi (6,586.71 km) |
| Risca to Creve Coeur (Missouri) | 4,090.29 mi (6,582.68 km) |
| Risca to Crofton (Maryland) | 3,521.66 mi (5,667.57 km) |
| Risca to Crossville (Tennessee) | 4,003.90 mi (6,443.66 km) |
| Risca to Crowley (Louisiana) | 4,584.26 mi (7,377.65 km) |
| Risca to Crowley (Texas) | 4,662.08 mi (7,502.90 km) |
| Risca to Crown Point (Indiana) | 3,840.98 mi (6,181.46 km) |
| Risca to Crystal (Minnesota) | 3,901.00 mi (6,278.05 km) |
| Risca to Crystal Lake (Illinois) | 3,841.70 mi (6,182.62 km) |
| Risca to Cudahy (California) | 5,342.60 mi (8,598.08 km) |
| Risca to Cudahy (Wisconsin) | 3,791.23 mi (6,101.40 km) |
| Risca to Cullman (Alabama) | 4,162.80 mi (6,699.38 km) |
