| San Mateo to Clarksdale (Mississippi) | 1,783.76 mi (2,870.68 km) |
| San Mateo to Clarkston (Georgia) | 2,137.63 mi (3,440.19 km) |
| San Mateo to Clarksville (Indiana) | 1,979.04 mi (3,184.96 km) |
| San Mateo to Clarksville (Tennessee) | 1,918.18 mi (3,087.02 km) |
| San Mateo to Clawson (Michigan) | 2,080.95 mi (3,348.96 km) |
| San Mateo to Clay (Alabama) | 2,010.69 mi (3,235.90 km) |
| San Mateo to Clayton (California) | 33.99 mi (54.69 km) |
| San Mateo to Clayton (Missouri) | 1,731.77 mi (2,787.02 km) |
| San Mateo to Clayton (North Carolina) | 2,414.20 mi (3,885.27 km) |
| San Mateo to Clayton (Ohio) | 2,038.68 mi (3,280.94 km) |
| San Mateo to Clearfield (Utah) | 601.60 mi (968.19 km) |
| San Mateo to Clearlake (California) | 98.74 mi (158.91 km) |
| San Mateo to Clearwater (Florida) | 2,372.05 mi (3,817.44 km) |
| San Mateo to Cleburne (Texas) | 1,450.15 mi (2,333.79 km) |
| San Mateo to Clemmons (North Carolina) | 2,302.84 mi (3,706.07 km) |
