| Simi Valley to Castelletto sopra Ticino | 6,009.47 mi (9,671.30 km) |
| Simi Valley to Castelli Calepio | 6,053.70 mi (9,742.48 km) |
| Simi Valley to Castelnovo ne' Monti | 6,132.87 mi (9,869.90 km) |
| Simi Valley to Castelnuovo Berardenga | 6,225.74 mi (10,019.36 km) |
| Simi Valley to Castelnuovo di Porto | 6,322.78 mi (10,175.53 km) |
| Simi Valley to Castelnuovo di Verona | 6,091.22 mi (9,802.87 km) |
| Simi Valley to Castelnuovo Rangone | 6,143.45 mi (9,886.93 km) |
| Simi Valley to Castelvetrano | 6,573.40 mi (10,578.86 km) |
| Simi Valley to Castelvetro di Modena | 6,146.64 mi (9,892.06 km) |
| Simi Valley to Castenaso | 6,162.37 mi (9,917.38 km) |
| Simi Valley to Castenedolo | 6,074.67 mi (9,776.23 km) |
| Simi Valley to Castiglion Fiorentino | 6,239.03 mi (10,040.74 km) |
| Simi Valley to Castiglione del Lago | 6,254.15 mi (10,065.08 km) |
| Simi Valley to Castiglione delle Stiviere | 6,084.72 mi (9,792.41 km) |
| Simi Valley to Castrolibero | 6,594.87 mi (10,613.42 km) |
