| Ionia to Castelfidardo | 4,635.10 mi (7,459.48 km) |
| Ionia to Castelfiorentino | 4,526.99 mi (7,285.49 km) |
| Ionia to Castelfranco di Sopra | 4,549.62 mi (7,321.91 km) |
| Ionia to Castelfranco di Sotto | 4,514.18 mi (7,264.87 km) |
| Ionia to Castelfranco Emilia | 4,489.20 mi (7,224.67 km) |
| Ionia to Castelfranco Veneto | 4,479.54 mi (7,209.13 km) |
| Ionia to Castellabate | 4,830.03 mi (7,773.19 km) |
| Ionia to Castellammare del Golfo | 4,844.17 mi (7,795.94 km) |
| Ionia to Castellammare di Stabia | 4,792.57 mi (7,712.90 km) |
| Ionia to Castellamonte | 4,324.90 mi (6,960.25 km) |
| Ionia to Castellana Grotte | 4,891.55 mi (7,872.19 km) |
| Ionia to Castellaneta | 4,893.57 mi (7,875.45 km) |
| Ionia to Castellanza | 4,362.84 mi (7,021.31 km) |
| Ionia to Castellarano | 4,479.78 mi (7,209.50 km) |
| Ionia to Castelleone | 4,409.69 mi (7,096.72 km) |
