| San Mateo to Cibolo (Texas) | 1,488.03 mi (2,394.75 km) |
| San Mateo to Cicero (Illinois) | 1,847.93 mi (2,973.95 km) |
| San Mateo to Cimarron Hills (Colorado) | 959.00 mi (1,543.36 km) |
| San Mateo to Cincinnati (Ohio) | 2,036.74 mi (3,277.81 km) |
| San Mateo to Cinco Ranch (Texas) | 1,613.17 mi (2,596.14 km) |
| San Mateo to Circleville (Ohio) | 2,114.69 mi (3,403.27 km) |
| San Mateo to Citrus (California) | 343.06 mi (552.11 km) |
| San Mateo to Citrus Heights (California) | 96.60 mi (155.46 km) |
| San Mateo to Citrus Park (Florida) | 2,380.05 mi (3,830.33 km) |
| San Mateo to Claiborne (Louisiana) | 1,730.55 mi (2,785.05 km) |
| San Mateo to Claremont (California) | 349.68 mi (562.75 km) |
| San Mateo to Claremont (New Hampshire) | 2,617.96 mi (4,213.21 km) |
| San Mateo to Claremore (Oklahoma) | 1,472.27 mi (2,369.40 km) |
| San Mateo to Clarksburg (Maryland) | 2,416.96 mi (3,889.73 km) |
| San Mateo to Clarksburg (West Virginia) | 2,255.69 mi (3,630.18 km) |
