| Issum to Cankova | 546.12 mi (878.89 km) |
| Issum to Celje | 543.09 mi (874.01 km) |
| Issum to Cerklje na Gorenjskem | 516.83 mi (831.76 km) |
| Issum to Cerknica | 536.52 mi (863.45 km) |
| Issum to Cerkno | 507.63 mi (816.96 km) |
| Issum to Cerkvenjak | 550.49 mi (885.92 km) |
| Issum to Cirkulane | 562.68 mi (905.55 km) |
| Issum to Crensovci | 562.54 mi (905.32 km) |
| Issum to Crna na Koroskem | 517.58 mi (832.96 km) |
| Issum to Crnomelj | 574.31 mi (924.26 km) |
| Issum to Destrnik | 551.71 mi (887.89 km) |
| Issum to Divaca | 531.05 mi (854.64 km) |
| Issum to Dobje | 552.22 mi (888.71 km) |
| Issum to Dobrna | 536.77 mi (863.85 km) |
| Issum to Dobrova | 524.70 mi (844.43 km) |
