| Valley to Cockermouth | 4,094.30 mi (6,589.13 km) |
| Valley to Colchester | 4,318.25 mi (6,949.55 km) |
| Valley to Coleford | 4,177.40 mi (6,722.87 km) |
| Valley to Colne | 4,155.10 mi (6,686.99 km) |
| Valley to Colwyn Bay | 4,105.25 mi (6,606.76 km) |
| Valley to Congleton | 4,166.70 mi (6,705.65 km) |
| Valley to Conisbrough | 4,199.67 mi (6,758.72 km) |
| Valley to Connahs Quay | 4,132.19 mi (6,650.12 km) |
| Valley to Consett | 4,149.90 mi (6,678.62 km) |
| Valley to Conwy | 4,100.24 mi (6,598.70 km) |
| Valley to Cookstown | 3,962.94 mi (6,377.74 km) |
| Valley to Corby | 4,240.80 mi (6,824.90 km) |
| Valley to Corfe Mullen | 4,222.93 mi (6,796.15 km) |
| Valley to Corsham | 4,202.28 mi (6,762.91 km) |
| Valley to Coseley | 4,184.02 mi (6,733.52 km) |
