| Clay to Casamassima | 5,353.97 mi (8,616.37 km) |
| Clay to Casandrino | 5,238.28 mi (8,430.19 km) |
| Clay to Casapulla | 5,234.78 mi (8,424.57 km) |
| Clay to Casarano | 5,444.62 mi (8,762.27 km) |
| Clay to Casatenovo | 4,857.26 mi (7,817.01 km) |
| Clay to Casciana Terme | 4,986.53 mi (8,025.04 km) |
| Clay to Cascina | 4,978.19 mi (8,011.62 km) |
| Clay to Caselle Torinese | 4,802.95 mi (7,729.60 km) |
| Clay to Caserta | 5,236.98 mi (8,428.10 km) |
| Clay to Casier | 4,984.61 mi (8,021.96 km) |
| Clay to Casorate Primo | 4,857.26 mi (7,817.01 km) |
| Clay to Casoria | 5,241.72 mi (8,435.73 km) |
| Clay to Cassano al Ionio | 5,372.83 mi (8,646.74 km) |
| Clay to Cassano d'Adda | 4,871.42 mi (7,839.79 km) |
| Clay to Cassano delle Murge | 5,350.05 mi (8,610.08 km) |
