| San Marcos to Chivasso | 6,025.18 mi (9,696.58 km) |
| San Marcos to Ciampino | 6,357.13 mi (10,230.82 km) |
| San Marcos to Cicciano | 6,465.26 mi (10,404.83 km) |
| San Marcos to Cingoli | 6,294.15 mi (10,129.45 km) |
| San Marcos to Cinisello Balsamo | 6,050.91 mi (9,738.01 km) |
| San Marcos to Cinisi | 6,566.50 mi (10,567.75 km) |
| San Marcos to Cirie | 6,013.35 mi (9,677.55 km) |
| San Marcos to Ciro Marina | 6,636.49 mi (10,680.40 km) |
| San Marcos to Cislago | 6,037.65 mi (9,716.67 km) |
| San Marcos to Cisterna di Latina | 6,375.78 mi (10,260.82 km) |
| San Marcos to Cisternino | 6,570.85 mi (10,574.75 km) |
| San Marcos to Citta di Castello | 6,257.80 mi (10,070.96 km) |
| San Marcos to Citta Sant'Angelo | 6,366.29 mi (10,245.55 km) |
| San Marcos to Cittadella | 6,128.02 mi (9,862.09 km) |
| San Marcos to Cittanova | 6,658.22 mi (10,715.38 km) |
