| Signal Hill to Carlsbad (California) | 69.26 mi (111.47 km) |
| Signal Hill to Carlsbad (New Mexico) | 811.38 mi (1,305.79 km) |
| Signal Hill to Carmel (Indiana) | 1,809.71 mi (2,912.45 km) |
| Signal Hill to Carmichael (California) | 377.17 mi (606.99 km) |
| Signal Hill to Carney (Maryland) | 2,321.24 mi (3,735.67 km) |
| Signal Hill to Carnot-Moon (Pennsylvania) | 2,123.39 mi (3,417.27 km) |
| Signal Hill to Carol Stream (Illinois) | 1,721.34 mi (2,770.23 km) |
| Signal Hill to Carolina (Puerto Rico) | 3,369.99 mi (5,423.48 km) |
| Signal Hill to Carolina Forest (South Carolina) | 2,240.21 mi (3,605.27 km) |
| Signal Hill to Carpentersville (Illinois) | 1,715.60 mi (2,761.00 km) |
| Signal Hill to Carpinteria (California) | 87.12 mi (140.21 km) |
| Signal Hill to Carrboro (North Carolina) | 2,205.63 mi (3,549.62 km) |
| Signal Hill to Carroll (Iowa) | 1,386.54 mi (2,231.41 km) |
| Signal Hill to Carrollton (Georgia) | 1,893.68 mi (3,047.59 km) |
| Signal Hill to Carrollton (Texas) | 1,225.97 mi (1,973.01 km) |
