| Castricum to Carlsbad (New Mexico) | 5,181.05 mi (8,338.10 km) |
| Castricum to Carmel (Indiana) | 4,130.42 mi (6,647.27 km) |
| Castricum to Carmichael (California) | 5,354.58 mi (8,617.36 km) |
| Castricum to Carney (Maryland) | 3,788.82 mi (6,097.52 km) |
| Castricum to Carnot-Moon (Pennsylvania) | 3,879.69 mi (6,243.76 km) |
| Castricum to Carol Stream (Illinois) | 4,107.61 mi (6,610.57 km) |
| Castricum to Carolina (Puerto Rico) | 4,406.55 mi (7,091.66 km) |
| Castricum to Carolina Forest (South Carolina) | 4,155.84 mi (6,688.18 km) |
| Castricum to Carpentersville (Illinois) | 4,103.35 mi (6,603.70 km) |
| Castricum to Carpinteria (California) | 5,555.75 mi (8,941.12 km) |
| Castricum to Carrboro (North Carolina) | 4,056.47 mi (6,528.25 km) |
| Castricum to Carroll (Iowa) | 4,338.66 mi (6,982.39 km) |
| Castricum to Carrollton (Georgia) | 4,408.95 mi (7,095.52 km) |
| Castricum to Carrollton (Texas) | 4,887.11 mi (7,865.04 km) |
| Castricum to Carrollwood (Florida) | 4,590.18 mi (7,387.17 km) |
