| Sumter to Castelletto sopra Ticino | 4,548.01 mi (7,319.32 km) |
| Sumter to Castelli Calepio | 4,605.88 mi (7,412.44 km) |
| Sumter to Castelnovo ne' Monti | 4,663.88 mi (7,505.79 km) |
| Sumter to Castelnuovo Berardenga | 4,746.67 mi (7,639.02 km) |
| Sumter to Castelnuovo di Porto | 4,830.31 mi (7,773.63 km) |
| Sumter to Castelnuovo di Verona | 4,649.67 mi (7,482.92 km) |
| Sumter to Castelnuovo Rangone | 4,683.89 mi (7,537.99 km) |
| Sumter to Castelvetrano | 4,992.25 mi (8,034.24 km) |
| Sumter to Castelvetro di Modena | 4,686.16 mi (7,541.65 km) |
| Sumter to Castenaso | 4,708.81 mi (7,578.10 km) |
| Sumter to Castenedolo | 4,628.05 mi (7,448.12 km) |
| Sumter to Castiglion Fiorentino | 4,765.29 mi (7,669.00 km) |
| Sumter to Castiglione del Lago | 4,777.59 mi (7,688.78 km) |
| Sumter to Castiglione delle Stiviere | 4,639.04 mi (7,465.81 km) |
| Sumter to Castrolibero | 5,094.69 mi (8,199.12 km) |
