| Seal Beach to Cibolo (Texas) | 1,201.23 mi (1,933.19 km) |
| Seal Beach to Cicero (Illinois) | 1,736.08 mi (2,793.95 km) |
| Seal Beach to Cimarron Hills (Colorado) | 822.76 mi (1,324.10 km) |
| Seal Beach to Cincinnati (Ohio) | 1,891.07 mi (3,043.38 km) |
| Seal Beach to Cinco Ranch (Texas) | 1,337.07 mi (2,151.81 km) |
| Seal Beach to Circleville (Ohio) | 1,975.46 mi (3,179.20 km) |
| Seal Beach to Citrus (California) | 27.09 mi (43.60 km) |
| Seal Beach to Citrus Heights (California) | 385.51 mi (620.42 km) |
| Seal Beach to Citrus Park (Florida) | 2,130.41 mi (3,428.57 km) |
| Seal Beach to Claiborne (Louisiana) | 1,495.23 mi (2,406.33 km) |
| Seal Beach to Claremont (California) | 32.81 mi (52.80 km) |
| Seal Beach to Claremont (New Hampshire) | 2,524.85 mi (4,063.36 km) |
| Seal Beach to Claremore (Oklahoma) | 1,280.07 mi (2,060.08 km) |
| Seal Beach to Clarksburg (Maryland) | 2,278.49 mi (3,666.87 km) |
| Seal Beach to Clarksburg (West Virginia) | 2,114.90 mi (3,403.60 km) |
