| Iowa City to Brezovica | 4,863.02 mi (7,826.27 km) |
| Iowa City to Cankova | 4,889.44 mi (7,868.79 km) |
| Iowa City to Celje | 4,884.30 mi (7,860.52 km) |
| Iowa City to Cerklje na Gorenjskem | 4,855.30 mi (7,813.85 km) |
| Iowa City to Cerknica | 4,870.86 mi (7,838.88 km) |
| Iowa City to Cerkno | 4,842.61 mi (7,793.42 km) |
| Iowa City to Cerkvenjak | 4,893.71 mi (7,875.66 km) |
| Iowa City to Cirkulane | 4,905.64 mi (7,894.86 km) |
| Iowa City to Crensovci | 4,905.86 mi (7,895.22 km) |
| Iowa City to Crna na Koroskem | 4,858.63 mi (7,819.20 km) |
| Iowa City to Crnomelj | 4,911.44 mi (7,904.19 km) |
| Iowa City to Destrnik | 4,894.79 mi (7,877.41 km) |
| Iowa City to Divaca | 4,861.68 mi (7,824.12 km) |
| Iowa City to Dobje | 4,893.36 mi (7,875.10 km) |
| Iowa City to Dobrna | 4,878.31 mi (7,850.87 km) |
