| San Mateo to Cividale del Friuli | 6,038.51 mi (9,718.05 km) |
| San Mateo to Civita Castellana | 6,228.22 mi (10,023.36 km) |
| San Mateo to Civitanova Marche | 6,207.96 mi (9,990.75 km) |
| San Mateo to Civitavecchia | 6,221.71 mi (10,012.87 km) |
| San Mateo to Civitella in Val di Chiana | 6,144.53 mi (9,888.67 km) |
| San Mateo to Clusone | 5,955.31 mi (9,584.15 km) |
| San Mateo to Coccaglio | 5,974.00 mi (9,614.23 km) |
| San Mateo to Codigoro | 6,075.27 mi (9,777.20 km) |
| San Mateo to Codogno | 5,988.71 mi (9,637.90 km) |
| San Mateo to Codroipo | 6,034.30 mi (9,711.26 km) |
| San Mateo to Cogoleto | 6,000.62 mi (9,657.06 km) |
| San Mateo to Colle di Val d'Elsa | 6,128.70 mi (9,863.19 km) |
| San Mateo to Colle Salvetti | 6,098.57 mi (9,814.71 km) |
| San Mateo to Collecchio | 6,026.33 mi (9,698.45 km) |
| San Mateo to Colleferro | 6,277.88 mi (10,103.28 km) |
