| Idrija to Cedar Rapids (Iowa) | 4,839.87 mi (7,789.03 km) |
| Idrija to Cedarburg (Wisconsin) | 4,640.56 mi (7,468.25 km) |
| Idrija to Celebration (Florida) | 5,087.87 mi (8,188.14 km) |
| Idrija to Celina (Ohio) | 4,637.17 mi (7,462.80 km) |
| Idrija to Celina (Texas) | 5,466.56 mi (8,797.58 km) |
| Idrija to Centennial (Colorado) | 5,421.98 mi (8,725.83 km) |
| Idrija to Center Point (Alabama) | 5,049.20 mi (8,125.90 km) |
| Idrija to Centereach (New York) | 4,158.45 mi (6,692.38 km) |
| Idrija to Centerton (Arkansas) | 5,215.77 mi (8,393.97 km) |
| Idrija to Centerville (Ohio) | 4,663.19 mi (7,504.67 km) |
| Idrija to Centerville (Utah) | 5,568.44 mi (8,961.54 km) |
| Idrija to Central (Louisiana) | 5,379.66 mi (8,657.72 km) |
| Idrija to Central Falls (Rhode Island) | 4,046.09 mi (6,511.55 km) |
| Idrija to Central Islip (New York) | 4,166.65 mi (6,705.58 km) |
| Idrija to Central Point (Oregon) | 5,782.29 mi (9,305.70 km) |
