| Placentia to Castle Pines (Colorado) | 815.26 mi (1,312.04 km) |
| Placentia to Castle Rock (Colorado) | 813.68 mi (1,309.49 km) |
| Placentia to Castro Valley (California) | 354.25 mi (570.11 km) |
| Placentia to Catalina Foothills (Arizona) | 417.88 mi (672.52 km) |
| Placentia to Cataño (Puerto Rico) | 3,342.05 mi (5,378.51 km) |
| Placentia to Cathedral City (California) | 79.87 mi (128.55 km) |
| Placentia to Catonsville (Maryland) | 2,291.53 mi (3,687.86 km) |
| Placentia to Cave Spring (Virginia) | 2,125.93 mi (3,421.36 km) |
| Placentia to Cayce (South Carolina) | 2,099.19 mi (3,378.32 km) |
| Placentia to Cayey (Puerto Rico) | 3,351.92 mi (5,394.40 km) |
| Placentia to Cedar City (Utah) | 374.34 mi (602.44 km) |
| Placentia to Cedar Falls (Iowa) | 1,495.40 mi (2,406.62 km) |
| Placentia to Cedar Hill (Texas) | 1,208.94 mi (1,945.60 km) |
| Placentia to Cedar Lake (Indiana) | 1,732.82 mi (2,788.70 km) |
| Placentia to Cedar Mill (Oregon) | 846.64 mi (1,362.54 km) |
