| Sozopol to Cookeville (Tennessee) | 5,570.50 mi (8,964.85 km) |
| Sozopol to Coolidge (Arizona) | 6,624.79 mi (10,661.57 km) |
| Sozopol to Coon Rapids (Minnesota) | 5,379.60 mi (8,657.63 km) |
| Sozopol to Cooper City (Florida) | 5,856.20 mi (9,424.64 km) |
| Sozopol to Coos Bay (Oregon) | 6,258.82 mi (10,072.60 km) |
| Sozopol to Copiague (New York) | 4,879.24 mi (7,852.37 km) |
| Sozopol to Coppell (Texas) | 6,161.07 mi (9,915.28 km) |
| Sozopol to Copperas Cove (Texas) | 6,295.34 mi (10,131.36 km) |
| Sozopol to Coral Gables (Florida) | 5,872.34 mi (9,450.62 km) |
| Sozopol to Coral Springs (Florida) | 5,844.05 mi (9,405.08 km) |
| Sozopol to Coral Terrace (Florida) | 5,871.71 mi (9,449.61 km) |
| Sozopol to Coralville (Iowa) | 5,506.06 mi (8,861.14 km) |
| Sozopol to Coram (New York) | 4,854.40 mi (7,812.40 km) |
| Sozopol to Corcoran (California) | 6,633.15 mi (10,675.03 km) |
| Sozopol to Cordele (Georgia) | 5,711.29 mi (9,191.44 km) |
