| Idrija to Commerce City (Colorado) | 5,406.47 mi (8,700.88 km) |
| Idrija to Compton (California) | 6,165.22 mi (9,921.97 km) |
| Idrija to Comstock Park (Michigan) | 4,565.82 mi (7,347.97 km) |
| Idrija to Concord (California) | 6,026.23 mi (9,698.28 km) |
| Idrija to Concord (Missouri) | 4,958.54 mi (7,980.00 km) |
| Idrija to Concord (New Hampshire) | 3,999.26 mi (6,436.19 km) |
| Idrija to Concord (North Carolina) | 4,715.43 mi (7,588.75 km) |
| Idrija to Conneaut (Ohio) | 4,418.03 mi (7,110.14 km) |
| Idrija to Connersville (Indiana) | 4,701.37 mi (7,566.13 km) |
| Idrija to Conroe (Texas) | 5,570.41 mi (8,964.71 km) |
| Idrija to Converse (Texas) | 5,723.87 mi (9,211.68 km) |
| Idrija to Conway (Arkansas) | 5,210.07 mi (8,384.80 km) |
| Idrija to Conway (Florida) | 5,069.33 mi (8,158.29 km) |
| Idrija to Conway (South Carolina) | 4,719.29 mi (7,594.97 km) |
| Idrija to Conyers (Georgia) | 4,936.99 mi (7,945.32 km) |
