| Sozopol to Castle Rock (Colorado) | 6,052.13 mi (9,739.95 km) |
| Sozopol to Castro Valley (California) | 6,583.23 mi (10,594.68 km) |
| Sozopol to Catalina Foothills (Arizona) | 6,644.67 mi (10,693.56 km) |
| Sozopol to Cataño (Puerto Rico) | 5,556.67 mi (8,942.60 km) |
| Sozopol to Cathedral City (California) | 6,700.79 mi (10,783.88 km) |
| Sozopol to Catonsville (Maryland) | 5,076.99 mi (8,170.62 km) |
| Sozopol to Cave Spring (Virginia) | 5,302.69 mi (8,533.85 km) |
| Sozopol to Cayce (South Carolina) | 5,502.44 mi (8,855.33 km) |
| Sozopol to Cayey (Puerto Rico) | 5,572.42 mi (8,967.95 km) |
| Sozopol to Cedar City (Utah) | 6,378.41 mi (10,265.06 km) |
| Sozopol to Cedar Falls (Iowa) | 5,491.70 mi (8,838.03 km) |
| Sozopol to Cedar Hill (Texas) | 6,180.99 mi (9,947.34 km) |
| Sozopol to Cedar Lake (Indiana) | 5,379.06 mi (8,656.76 km) |
| Sozopol to Cedar Mill (Oregon) | 6,094.44 mi (9,808.06 km) |
| Sozopol to Cedar Park (Texas) | 6,325.60 mi (10,180.07 km) |
