| San Mateo to Cadillac (Michigan) | 1,963.94 mi (3,160.66 km) |
| San Mateo to Caguas (Puerto Rico) | 3,627.33 mi (5,837.63 km) |
| San Mateo to Cahokia (Illinois) | 1,740.59 mi (2,801.21 km) |
| San Mateo to Calabasas (California) | 311.87 mi (501.91 km) |
| San Mateo to Caldwell (Idaho) | 514.67 mi (828.27 km) |
| San Mateo to Caledonia (Wisconsin) | 1,840.39 mi (2,961.81 km) |
| San Mateo to Calera (Alabama) | 2,015.71 mi (3,243.96 km) |
| San Mateo to Calexico (California) | 511.15 mi (822.62 km) |
| San Mateo to Calhoun (Georgia) | 2,085.48 mi (3,356.25 km) |
| San Mateo to California (Maryland) | 2,471.54 mi (3,977.56 km) |
| San Mateo to California City (California) | 297.28 mi (478.43 km) |
| San Mateo to Callaway (Florida) | 2,156.02 mi (3,469.77 km) |
| San Mateo to Calumet City (Illinois) | 1,859.42 mi (2,992.44 km) |
| San Mateo to Calverton (Maryland) | 2,435.99 mi (3,920.35 km) |
| San Mateo to Camano (Washington) | 734.80 mi (1,182.55 km) |
