| Most to Castle Rock (Colorado) | 5,197.54 mi (8,364.63 km) |
| Most to Castro Valley (California) | 5,774.64 mi (9,293.38 km) |
| Most to Catalina Foothills (Arizona) | 5,791.06 mi (9,319.81 km) |
| Most to Cataño (Puerto Rico) | 4,798.20 mi (7,721.95 km) |
| Most to Cathedral City (California) | 5,864.13 mi (9,437.40 km) |
| Most to Catonsville (Maryland) | 4,213.26 mi (6,780.58 km) |
| Most to Cave Spring (Virginia) | 4,438.44 mi (7,142.97 km) |
| Most to Cayce (South Carolina) | 4,641.61 mi (7,469.95 km) |
| Most to Cayey (Puerto Rico) | 4,815.61 mi (7,749.98 km) |
| Most to Cedar City (Utah) | 5,539.45 mi (8,914.88 km) |
| Most to Cedar Falls (Iowa) | 4,625.54 mi (7,444.09 km) |
| Most to Cedar Hill (Texas) | 5,311.85 mi (8,548.60 km) |
| Most to Cedar Lake (Indiana) | 4,509.89 mi (7,257.96 km) |
| Most to Cedar Mill (Oregon) | 5,308.26 mi (8,542.81 km) |
| Most to Cedar Park (Texas) | 5,456.29 mi (8,781.05 km) |
