| Blackburn to Carlsbad (New Mexico) | 4,885.44 mi (7,862.36 km) |
| Blackburn to Carmel (Indiana) | 3,827.02 mi (6,159.00 km) |
| Blackburn to Carmichael (California) | 5,092.42 mi (8,195.46 km) |
| Blackburn to Carney (Maryland) | 3,481.70 mi (5,603.26 km) |
| Blackburn to Carnot-Moon (Pennsylvania) | 3,573.93 mi (5,751.69 km) |
| Blackburn to Carol Stream (Illinois) | 3,807.12 mi (6,126.96 km) |
| Blackburn to Carolina (Puerto Rico) | 4,122.70 mi (6,634.85 km) |
| Blackburn to Carolina Forest (South Carolina) | 3,848.44 mi (6,193.47 km) |
| Blackburn to Carpentersville (Illinois) | 3,803.16 mi (6,120.60 km) |
| Blackburn to Carpinteria (California) | 5,284.15 mi (8,504.01 km) |
| Blackburn to Carrboro (North Carolina) | 3,749.11 mi (6,033.61 km) |
| Blackburn to Carroll (Iowa) | 4,043.88 mi (6,507.99 km) |
| Blackburn to Carrollton (Georgia) | 4,102.08 mi (6,601.66 km) |
| Blackburn to Carrollton (Texas) | 4,585.53 mi (7,379.70 km) |
| Blackburn to Carrollwood (Florida) | 4,283.06 mi (6,892.92 km) |
