| Saint-Louis to Cicero (Illinois) | 4,388.79 mi (7,063.08 km) |
| Saint-Louis to Cimarron Hills (Colorado) | 5,159.83 mi (8,303.94 km) |
| Saint-Louis to Cincinnati (Ohio) | 4,383.36 mi (7,054.34 km) |
| Saint-Louis to Cinco Ranch (Texas) | 5,294.63 mi (8,520.89 km) |
| Saint-Louis to Circleville (Ohio) | 4,298.75 mi (6,918.16 km) |
| Saint-Louis to Citrus (California) | 5,860.86 mi (9,432.15 km) |
| Saint-Louis to Citrus Heights (California) | 5,696.96 mi (9,168.36 km) |
| Saint-Louis to Citrus Park (Florida) | 4,819.42 mi (7,756.10 km) |
| Saint-Louis to Claiborne (Louisiana) | 5,009.47 mi (8,061.96 km) |
| Saint-Louis to Claremont (California) | 5,854.80 mi (9,422.39 km) |
| Saint-Louis to Claremont (New Hampshire) | 3,705.40 mi (5,963.26 km) |
| Saint-Louis to Claremore (Oklahoma) | 4,956.66 mi (7,976.98 km) |
| Saint-Louis to Clarksburg (Maryland) | 4,081.65 mi (6,568.79 km) |
| Saint-Louis to Clarksburg (West Virginia) | 4,206.12 mi (6,769.10 km) |
| Saint-Louis to Clarksdale (Mississippi) | 4,862.05 mi (7,824.72 km) |
