| Irun to Castle Rock (Colorado) | 4,977.68 mi (8,010.80 km) |
| Irun to Castro Valley (California) | 5,703.52 mi (9,178.93 km) |
| Irun to Catalina Foothills (Arizona) | 5,559.52 mi (8,947.19 km) |
| Irun to Cataño (Puerto Rico) | 4,073.56 mi (6,555.76 km) |
| Irun to Cathedral City (California) | 5,702.57 mi (9,177.40 km) |
| Irun to Catonsville (Maryland) | 3,766.35 mi (6,061.36 km) |
| Irun to Cave Spring (Virginia) | 3,991.02 mi (6,422.92 km) |
| Irun to Cayce (South Carolina) | 4,165.07 mi (6,703.03 km) |
| Irun to Cayey (Puerto Rico) | 4,088.88 mi (6,580.42 km) |
| Irun to Cedar City (Utah) | 5,379.28 mi (8,657.12 km) |
| Irun to Cedar Falls (Iowa) | 4,336.79 mi (6,979.38 km) |
| Irun to Cedar Hill (Texas) | 4,952.55 mi (7,970.37 km) |
| Irun to Cedar Lake (Indiana) | 4,168.49 mi (6,708.54 km) |
| Irun to Cedar Mill (Oregon) | 5,310.57 mi (8,546.53 km) |
| Irun to Cedar Park (Texas) | 5,084.22 mi (8,182.25 km) |
