| Sofia to Castle Rock (Colorado) | 5,905.13 mi (9,503.38 km) |
| Sofia to Castro Valley (California) | 6,470.91 mi (10,413.93 km) |
| Sofia to Catalina Foothills (Arizona) | 6,498.67 mi (10,458.60 km) |
| Sofia to Cataño (Puerto Rico) | 5,336.71 mi (8,588.60 km) |
| Sofia to Cathedral City (California) | 6,569.61 mi (10,572.77 km) |
| Sofia to Catonsville (Maryland) | 4,888.33 mi (7,867.00 km) |
| Sofia to Cave Spring (Virginia) | 5,114.45 mi (8,230.91 km) |
| Sofia to Cayce (South Carolina) | 5,310.42 mi (8,546.29 km) |
| Sofia to Cayey (Puerto Rico) | 5,352.31 mi (8,613.70 km) |
| Sofia to Cedar City (Utah) | 6,245.35 mi (10,050.92 km) |
| Sofia to Cedar Falls (Iowa) | 5,329.26 mi (8,576.61 km) |
| Sofia to Cedar Hill (Texas) | 6,009.08 mi (9,670.68 km) |
| Sofia to Cedar Lake (Indiana) | 5,207.32 mi (8,380.38 km) |
| Sofia to Cedar Mill (Oregon) | 5,994.36 mi (9,646.99 km) |
| Sofia to Cedar Park (Texas) | 6,151.95 mi (9,900.61 km) |
