| Planken to Castle Rock (Colorado) | 5,224.48 mi (8,407.99 km) |
| Planken to Castro Valley (California) | 5,854.86 mi (9,422.49 km) |
| Planken to Catalina Foothills (Arizona) | 5,817.20 mi (9,361.87 km) |
| Planken to Cataño (Puerto Rico) | 4,625.95 mi (7,444.75 km) |
| Planken to Cathedral City (California) | 5,914.72 mi (9,518.82 km) |
| Planken to Catonsville (Maryland) | 4,152.75 mi (6,683.21 km) |
| Planken to Cave Spring (Virginia) | 4,379.04 mi (7,047.39 km) |
| Planken to Cayce (South Carolina) | 4,572.26 mi (7,358.35 km) |
| Planken to Cayey (Puerto Rico) | 4,642.42 mi (7,471.25 km) |
| Planken to Cedar City (Utah) | 5,588.74 mi (8,994.21 km) |
| Planken to Cedar Falls (Iowa) | 4,625.03 mi (7,443.27 km) |
| Planken to Cedar Hill (Texas) | 5,289.82 mi (8,513.14 km) |
| Planken to Cedar Lake (Indiana) | 4,489.89 mi (7,225.78 km) |
| Planken to Cedar Mill (Oregon) | 5,409.56 mi (8,705.85 km) |
| Planken to Cedar Park (Texas) | 5,430.29 mi (8,739.21 km) |
