| Blackburn to Castle Rock (Colorado) | 4,530.06 mi (7,290.43 km) |
| Blackburn to Castro Valley (California) | 5,167.69 mi (8,316.60 km) |
| Blackburn to Catalina Foothills (Arizona) | 5,122.98 mi (8,244.64 km) |
| Blackburn to Cataño (Puerto Rico) | 4,127.58 mi (6,642.69 km) |
| Blackburn to Cathedral City (California) | 5,220.59 mi (8,401.73 km) |
| Blackburn to Catonsville (Maryland) | 3,496.88 mi (5,627.69 km) |
| Blackburn to Cave Spring (Virginia) | 3,722.35 mi (5,990.55 km) |
| Blackburn to Cayce (South Carolina) | 3,924.30 mi (6,315.56 km) |
| Blackburn to Cayey (Puerto Rico) | 4,145.95 mi (6,672.26 km) |
| Blackburn to Cedar City (Utah) | 4,894.58 mi (7,877.07 km) |
| Blackburn to Cedar Falls (Iowa) | 3,935.53 mi (6,333.62 km) |
| Blackburn to Cedar Hill (Texas) | 4,609.34 mi (7,418.01 km) |
| Blackburn to Cedar Lake (Indiana) | 3,807.81 mi (6,128.08 km) |
| Blackburn to Cedar Mill (Oregon) | 4,733.18 mi (7,617.31 km) |
| Blackburn to Cedar Park (Texas) | 4,751.92 mi (7,647.47 km) |
