| Webster Groves to Cibolo (Texas) | 767.98 mi (1,235.94 km) |
| Webster Groves to Cicero (Illinois) | 263.44 mi (423.96 km) |
| Webster Groves to Cimarron Hills (Colorado) | 772.71 mi (1,243.55 km) |
| Webster Groves to Cincinnati (Ohio) | 316.90 mi (510.01 km) |
| Webster Groves to Cinco Ranch (Texas) | 684.63 mi (1,101.80 km) |
| Webster Groves to Circleville (Ohio) | 404.00 mi (650.17 km) |
| Webster Groves to Citrus (California) | 1,556.91 mi (2,505.60 km) |
| Webster Groves to Citrus Heights (California) | 1,661.38 mi (2,673.73 km) |
| Webster Groves to Citrus Park (Florida) | 853.58 mi (1,373.71 km) |
| Webster Groves to Claiborne (Louisiana) | 430.55 mi (692.90 km) |
| Webster Groves to Claremont (California) | 1,547.31 mi (2,490.15 km) |
| Webster Groves to Claremont (New Hampshire) | 993.98 mi (1,599.66 km) |
| Webster Groves to Claremore (Oklahoma) | 328.15 mi (528.10 km) |
| Webster Groves to Clarksburg (Maryland) | 704.50 mi (1,133.78 km) |
| Webster Groves to Clarksburg (West Virginia) | 541.00 mi (870.65 km) |
