| Apex to Castle Rock (Colorado) | 1,440.14 mi (2,317.68 km) |
| Apex to Castro Valley (California) | 2,374.71 mi (3,821.72 km) |
| Apex to Catalina Foothills (Arizona) | 1,840.19 mi (2,961.50 km) |
| Apex to Cataño (Puerto Rico) | 1,425.11 mi (2,293.50 km) |
| Apex to Cathedral City (California) | 2,124.19 mi (3,418.55 km) |
| Apex to Catonsville (Maryland) | 271.11 mi (436.31 km) |
| Apex to Cave Spring (Virginia) | 121.35 mi (195.30 km) |
| Apex to Cayce (South Carolina) | 173.81 mi (279.72 km) |
| Apex to Cayey (Puerto Rico) | 1,443.73 mi (2,323.45 km) |
| Apex to Cedar City (Utah) | 1,890.01 mi (3,041.67 km) |
| Apex to Cedar Falls (Iowa) | 864.55 mi (1,391.37 km) |
| Apex to Cedar Hill (Texas) | 1,054.97 mi (1,697.81 km) |
| Apex to Cedar Lake (Indiana) | 604.74 mi (973.24 km) |
| Apex to Cedar Mill (Oregon) | 2,368.64 mi (3,811.95 km) |
| Apex to Cedar Park (Texas) | 1,151.77 mi (1,853.59 km) |
