| Sonoma to Castelletto sopra Ticino | 5,887.84 mi (9,475.57 km) |
| Sonoma to Castelli Calepio | 5,928.44 mi (9,540.90 km) |
| Sonoma to Castelnovo ne' Monti | 6,010.18 mi (9,672.45 km) |
| Sonoma to Castelnuovo Berardenga | 6,103.17 mi (9,822.10 km) |
| Sonoma to Castelnuovo di Porto | 6,200.96 mi (9,979.48 km) |
| Sonoma to Castelnuovo di Verona | 5,963.94 mi (9,598.03 km) |
| Sonoma to Castelnuovo Rangone | 6,018.65 mi (9,686.08 km) |
| Sonoma to Castelvetrano | 6,465.47 mi (10,405.18 km) |
| Sonoma to Castelvetro di Modena | 6,021.96 mi (9,691.40 km) |
| Sonoma to Castenaso | 6,035.99 mi (9,713.98 km) |
| Sonoma to Castenedolo | 5,948.73 mi (9,573.56 km) |
| Sonoma to Castiglion Fiorentino | 6,115.10 mi (9,841.30 km) |
| Sonoma to Castiglione del Lago | 6,130.48 mi (9,866.06 km) |
| Sonoma to Castiglione delle Stiviere | 5,958.39 mi (9,589.10 km) |
| Sonoma to Castrolibero | 6,469.14 mi (10,411.08 km) |
