| Most to Clarkston (Georgia) | 4,773.33 mi (7,681.94 km) |
| Most to Clarksville (Indiana) | 4,602.44 mi (7,406.90 km) |
| Most to Clarksville (Tennessee) | 4,750.02 mi (7,644.42 km) |
| Most to Clawson (Michigan) | 4,297.98 mi (6,916.93 km) |
| Most to Clay (Alabama) | 4,870.39 mi (7,838.14 km) |
| Most to Clayton (California) | 5,757.09 mi (9,265.14 km) |
| Most to Clayton (Missouri) | 4,752.08 mi (7,647.73 km) |
| Most to Clayton (North Carolina) | 4,454.24 mi (7,168.40 km) |
| Most to Clayton (Ohio) | 4,471.87 mi (7,196.78 km) |
| Most to Clearfield (Utah) | 5,308.23 mi (8,542.76 km) |
| Most to Clearlake (California) | 5,711.06 mi (9,191.06 km) |
| Most to Clearwater (Florida) | 5,014.60 mi (8,070.22 km) |
| Most to Cleburne (Texas) | 5,340.34 mi (8,594.45 km) |
| Most to Clemmons (North Carolina) | 4,511.94 mi (7,261.26 km) |
| Most to Clemson (South Carolina) | 4,673.73 mi (7,521.65 km) |
