| Santa Margarita to Carson (California) | 6,126.74 mi (9,860.04 km) |
| Santa Margarita to Carson City (Nevada) | 5,902.63 mi (9,499.37 km) |
| Santa Margarita to Carteret (New Jersey) | 3,942.61 mi (6,345.02 km) |
| Santa Margarita to Cartersville (Georgia) | 4,666.66 mi (7,510.27 km) |
| Santa Margarita to Carthage (Missouri) | 4,985.08 mi (8,022.71 km) |
| Santa Margarita to Cary (Illinois) | 4,520.99 mi (7,275.83 km) |
| Santa Margarita to Cary (North Carolina) | 4,320.74 mi (6,953.57 km) |
| Santa Margarita to Casa de Oro-Mount Helix (California) | 6,133.18 mi (9,870.41 km) |
| Santa Margarita to Casa Grande (Arizona) | 5,919.45 mi (9,526.44 km) |
| Santa Margarita to Casas Adobes (Arizona) | 5,916.54 mi (9,521.75 km) |
| Santa Margarita to Cascades (Virginia) | 4,140.43 mi (6,663.38 km) |
| Santa Margarita to Casper (Wyoming) | 5,231.29 mi (8,418.94 km) |
| Santa Margarita to Casselberry (Florida) | 4,709.53 mi (7,579.26 km) |
| Santa Margarita to Castaic (California) | 6,107.22 mi (9,828.63 km) |
| Santa Margarita to Castle Pines (Colorado) | 5,329.26 mi (8,576.62 km) |
