| Idrija to Culpeper (Virginia) | 4,466.27 mi (7,187.77 km) |
| Idrija to Culver City (California) | 6,163.52 mi (9,919.23 km) |
| Idrija to Cumberland (Maryland) | 4,445.39 mi (7,154.16 km) |
| Idrija to Cupertino (California) | 6,067.08 mi (9,764.02 km) |
| Idrija to Cutler Bay (Florida) | 5,165.28 mi (8,312.71 km) |
| Idrija to Cutlerville (Michigan) | 4,574.97 mi (7,362.71 km) |
| Idrija to Cuyahoga Falls (Ohio) | 4,489.64 mi (7,225.38 km) |
| Idrija to Cypress (California) | 6,164.14 mi (9,920.23 km) |
| Idrija to Cypress Gardens (Florida) | 5,108.48 mi (8,221.31 km) |
| Idrija to Cypress Lake (Florida) | 5,188.44 mi (8,349.98 km) |
| Idrija to D'Iberville (Mississippi) | 5,296.22 mi (8,523.45 km) |
| Idrija to Dakota Ridge (Colorado) | 5,429.35 mi (8,737.69 km) |
| Idrija to Dale City (Virginia) | 4,431.26 mi (7,131.42 km) |
| Idrija to Dallas (Georgia) | 4,960.18 mi (7,982.63 km) |
| Idrija to Dallas (Oregon) | 5,637.22 mi (9,072.23 km) |
