| Seal Beach to Cadillac (Michigan) | 1,881.79 mi (3,028.45 km) |
| Seal Beach to Caguas (Puerto Rico) | 3,366.62 mi (5,418.05 km) |
| Seal Beach to Cahokia (Illinois) | 1,584.57 mi (2,550.12 km) |
| Seal Beach to Calabasas (California) | 43.29 mi (69.67 km) |
| Seal Beach to Caldwell (Idaho) | 687.61 mi (1,106.60 km) |
| Seal Beach to Caledonia (Wisconsin) | 1,741.47 mi (2,802.63 km) |
| Seal Beach to Calera (Alabama) | 1,799.69 mi (2,896.33 km) |
| Seal Beach to Calexico (California) | 166.26 mi (267.58 km) |
| Seal Beach to Calhoun (Georgia) | 1,887.30 mi (3,037.31 km) |
| Seal Beach to California (Maryland) | 2,324.75 mi (3,741.33 km) |
| Seal Beach to California City (California) | 97.64 mi (157.14 km) |
| Seal Beach to Callaway (Florida) | 1,914.71 mi (3,081.43 km) |
| Seal Beach to Calumet City (Illinois) | 1,744.38 mi (2,807.32 km) |
| Seal Beach to Calverton (Maryland) | 2,296.18 mi (3,695.34 km) |
| Seal Beach to Camano (Washington) | 1,022.80 mi (1,646.03 km) |
