| Most to Cicero (Illinois) | 4,497.43 mi (7,237.91 km) |
| Most to Cimarron Hills (Colorado) | 5,221.89 mi (8,403.82 km) |
| Most to Cincinnati (Ohio) | 4,514.58 mi (7,265.52 km) |
| Most to Cinco Ranch (Texas) | 5,423.82 mi (8,728.79 km) |
| Most to Circleville (Ohio) | 4,432.98 mi (7,134.19 km) |
| Most to Citrus (California) | 5,886.65 mi (9,473.65 km) |
| Most to Citrus Heights (California) | 5,694.87 mi (9,165.01 km) |
| Most to Citrus Park (Florida) | 5,001.67 mi (8,049.41 km) |
| Most to Claiborne (Louisiana) | 5,141.31 mi (8,274.14 km) |
| Most to Claremont (California) | 5,881.29 mi (9,465.03 km) |
| Most to Claremont (New Hampshire) | 3,853.64 mi (6,201.83 km) |
| Most to Claremore (Oklahoma) | 5,061.67 mi (8,145.97 km) |
| Most to Clarksburg (Maryland) | 4,235.50 mi (6,816.38 km) |
| Most to Clarksburg (West Virginia) | 4,350.11 mi (7,000.82 km) |
| Most to Clarksdale (Mississippi) | 4,993.28 mi (8,035.91 km) |
