| Placentia to Commerce (California) | 18.78 mi (30.23 km) |
| Placentia to Commerce City (Colorado) | 828.33 mi (1,333.07 km) |
| Placentia to Compton (California) | 21.36 mi (34.37 km) |
| Placentia to Comstock Park (Michigan) | 1,838.84 mi (2,959.33 km) |
| Placentia to Concord (California) | 365.60 mi (588.38 km) |
| Placentia to Concord (Missouri) | 1,560.10 mi (2,510.74 km) |
| Placentia to Concord (New Hampshire) | 2,549.01 mi (4,102.23 km) |
| Placentia to Concord (North Carolina) | 2,105.88 mi (3,389.09 km) |
| Placentia to Conneaut (Ohio) | 2,089.47 mi (3,362.68 km) |
| Placentia to Connersville (Indiana) | 1,843.33 mi (2,966.56 km) |
| Placentia to Conroe (Texas) | 1,329.54 mi (2,139.69 km) |
| Placentia to Converse (Texas) | 1,186.09 mi (1,908.82 km) |
| Placentia to Conway (Arkansas) | 1,444.37 mi (2,324.48 km) |
| Placentia to Conway (Florida) | 2,179.02 mi (3,506.79 km) |
| Placentia to Conway (South Carolina) | 2,213.23 mi (3,561.84 km) |
