| Signal Hill to Conyers (Georgia) | 1,954.32 mi (3,145.18 km) |
| Signal Hill to Cookeville (Tennessee) | 1,847.29 mi (2,972.92 km) |
| Signal Hill to Coolidge (Arizona) | 387.88 mi (624.23 km) |
| Signal Hill to Coon Rapids (Minnesota) | 1,531.54 mi (2,464.78 km) |
| Signal Hill to Cooper City (Florida) | 2,317.16 mi (3,729.10 km) |
| Signal Hill to Coos Bay (Oregon) | 737.74 mi (1,187.28 km) |
| Signal Hill to Copiague (New York) | 2,480.95 mi (3,992.70 km) |
| Signal Hill to Coppell (Texas) | 1,221.05 mi (1,965.08 km) |
| Signal Hill to Copperas Cove (Texas) | 1,193.24 mi (1,920.34 km) |
| Signal Hill to Coral Gables (Florida) | 2,327.17 mi (3,745.21 km) |
| Signal Hill to Coral Springs (Florida) | 2,312.82 mi (3,722.12 km) |
| Signal Hill to Coral Terrace (Florida) | 2,324.10 mi (3,740.28 km) |
| Signal Hill to Coralville (Iowa) | 1,543.10 mi (2,483.38 km) |
| Signal Hill to Coram (New York) | 2,500.20 mi (4,023.68 km) |
| Signal Hill to Corcoran (California) | 176.25 mi (283.65 km) |
