| Efringen-Kirchen to Castle Rock (Colorado) | 5,134.78 mi (8,263.63 km) |
| Efringen-Kirchen to Castro Valley (California) | 5,773.32 mi (9,291.26 km) |
| Efringen-Kirchen to Catalina Foothills (Arizona) | 5,727.14 mi (9,216.94 km) |
| Efringen-Kirchen to Cataño (Puerto Rico) | 4,532.97 mi (7,295.10 km) |
| Efringen-Kirchen to Cathedral City (California) | 5,828.07 mi (9,379.37 km) |
| Efringen-Kirchen to Catonsville (Maryland) | 4,055.84 mi (6,527.24 km) |
| Efringen-Kirchen to Cave Spring (Virginia) | 4,282.14 mi (6,891.44 km) |
| Efringen-Kirchen to Cayce (South Carolina) | 4,475.00 mi (7,201.81 km) |
| Efringen-Kirchen to Cayey (Puerto Rico) | 4,549.56 mi (7,321.81 km) |
| Efringen-Kirchen to Cedar City (Utah) | 5,502.05 mi (8,854.70 km) |
| Efringen-Kirchen to Cedar Falls (Iowa) | 4,532.35 mi (7,294.10 km) |
| Efringen-Kirchen to Cedar Hill (Texas) | 5,194.97 mi (8,360.49 km) |
| Efringen-Kirchen to Cedar Lake (Indiana) | 4,395.42 mi (7,073.75 km) |
| Efringen-Kirchen to Cedar Mill (Oregon) | 5,332.56 mi (8,581.93 km) |
| Efringen-Kirchen to Cedar Park (Texas) | 5,335.10 mi (8,586.02 km) |
