| Fallbrook to Castle Pines (Colorado) | 804.58 mi (1,294.85 km) |
| Fallbrook to Castle Rock (Colorado) | 802.64 mi (1,291.73 km) |
| Fallbrook to Castro Valley (California) | 404.65 mi (651.22 km) |
| Fallbrook to Catalina Foothills (Arizona) | 375.39 mi (604.13 km) |
| Fallbrook to Cataño (Puerto Rico) | 3,302.92 mi (5,315.53 km) |
| Fallbrook to Cathedral City (California) | 54.42 mi (87.59 km) |
| Fallbrook to Catonsville (Maryland) | 2,271.04 mi (3,654.88 km) |
| Fallbrook to Cave Spring (Virginia) | 2,102.12 mi (3,383.03 km) |
| Fallbrook to Cayce (South Carolina) | 2,070.37 mi (3,331.94 km) |
| Fallbrook to Cayey (Puerto Rico) | 3,312.57 mi (5,331.07 km) |
| Fallbrook to Cedar City (Utah) | 377.78 mi (607.98 km) |
| Fallbrook to Cedar Falls (Iowa) | 1,483.18 mi (2,386.94 km) |
| Fallbrook to Cedar Hill (Texas) | 1,174.13 mi (1,889.59 km) |
| Fallbrook to Cedar Lake (Indiana) | 1,716.50 mi (2,762.44 km) |
| Fallbrook to Cedar Mill (Oregon) | 891.08 mi (1,434.06 km) |
