| West Islip to Castelletto sopra Ticino | 3,954.57 mi (6,364.27 km) |
| West Islip to Castelli Calepio | 4,011.62 mi (6,456.08 km) |
| West Islip to Castelnovo ne' Monti | 4,072.05 mi (6,553.33 km) |
| West Islip to Castelnuovo Berardenga | 4,156.48 mi (6,689.21 km) |
| West Islip to Castelnuovo di Porto | 4,242.20 mi (6,827.16 km) |
| West Islip to Castelnuovo di Verona | 4,055.17 mi (6,526.17 km) |
| West Islip to Castelnuovo Rangone | 4,091.30 mi (6,584.31 km) |
| West Islip to Castelvetrano | 4,416.62 mi (7,107.87 km) |
| West Islip to Castelvetro di Modena | 4,093.68 mi (6,588.13 km) |
| West Islip to Castenaso | 4,115.84 mi (6,623.81 km) |
| West Islip to Castenedolo | 4,033.84 mi (6,491.85 km) |
| West Islip to Castiglion Fiorentino | 4,174.71 mi (6,718.55 km) |
| West Islip to Castiglione del Lago | 4,187.39 mi (6,738.95 km) |
| West Islip to Castiglione delle Stiviere | 4,044.83 mi (6,509.53 km) |
| West Islip to Castrolibero | 4,509.59 mi (7,257.48 km) |
