| Castricum to Coldwater (Michigan) | 3,991.61 mi (6,423.87 km) |
| Castricum to Colesville (Maryland) | 3,823.15 mi (6,152.77 km) |
| Castricum to College (Alaska) | 4,192.51 mi (6,747.19 km) |
| Castricum to College Park (Georgia) | 4,381.98 mi (7,052.11 km) |
| Castricum to College Park (Maryland) | 3,824.14 mi (6,154.36 km) |
| Castricum to College Station (Texas) | 4,993.94 mi (8,036.97 km) |
| Castricum to Collegedale (Tennessee) | 4,333.16 mi (6,973.55 km) |
| Castricum to Colleyville (Texas) | 4,901.44 mi (7,888.10 km) |
| Castricum to Collierville (Tennessee) | 4,511.24 mi (7,260.14 km) |
| Castricum to Collinsville (Illinois) | 4,337.50 mi (6,980.54 km) |
| Castricum to Colonia (New Jersey) | 3,647.07 mi (5,869.39 km) |
| Castricum to Colonial Heights (Virginia) | 3,924.72 mi (6,316.23 km) |
| Castricum to Colonial Park (Pennsylvania) | 3,758.19 mi (6,048.22 km) |
| Castricum to Colorado Springs (Colorado) | 4,842.06 mi (7,792.54 km) |
| Castricum to Colton (California) | 5,511.41 mi (8,869.75 km) |
