| Somerset to Castelletto sopra Ticino | 4,014.15 mi (6,460.14 km) |
| Somerset to Castelli Calepio | 4,071.02 mi (6,551.67 km) |
| Somerset to Castelnovo ne' Monti | 4,131.90 mi (6,649.65 km) |
| Somerset to Castelnuovo Berardenga | 4,216.61 mi (6,785.97 km) |
| Somerset to Castelnuovo di Porto | 4,302.64 mi (6,924.43 km) |
| Somerset to Castelnuovo di Verona | 4,114.51 mi (6,621.67 km) |
| Somerset to Castelnuovo Rangone | 4,151.01 mi (6,680.40 km) |
| Somerset to Castelvetrano | 4,478.56 mi (7,207.55 km) |
| Somerset to Castelvetro di Modena | 4,153.40 mi (6,684.26 km) |
| Somerset to Castenaso | 4,175.47 mi (6,719.78 km) |
| Somerset to Castenedolo | 4,093.25 mi (6,587.45 km) |
| Somerset to Castiglion Fiorentino | 4,234.77 mi (6,815.20 km) |
| Somerset to Castiglione del Lago | 4,247.50 mi (6,835.70 km) |
| Somerset to Castiglione delle Stiviere | 4,104.23 mi (6,605.13 km) |
| Somerset to Castrolibero | 4,570.42 mi (7,355.38 km) |
