| Altadena to Carson (California) | 25.51 mi (41.06 km) |
| Altadena to Carson City (Nevada) | 354.04 mi (569.78 km) |
| Altadena to Carteret (New Jersey) | 2,424.88 mi (3,902.46 km) |
| Altadena to Cartersville (Georgia) | 1,896.70 mi (3,052.44 km) |
| Altadena to Carthage (Missouri) | 1,348.45 mi (2,170.12 km) |
| Altadena to Cary (Illinois) | 1,704.27 mi (2,742.76 km) |
| Altadena to Cary (North Carolina) | 2,213.25 mi (3,561.89 km) |
| Altadena to Casa de Oro-Mount Helix (California) | 119.41 mi (192.16 km) |
| Altadena to Casa Grande (Arizona) | 377.46 mi (607.46 km) |
| Altadena to Casas Adobes (Arizona) | 430.80 mi (693.31 km) |
| Altadena to Cascades (Virginia) | 2,265.32 mi (3,645.68 km) |
| Altadena to Casper (Wyoming) | 873.04 mi (1,405.03 km) |
| Altadena to Casselberry (Florida) | 2,191.70 mi (3,527.20 km) |
| Altadena to Castaic (California) | 34.68 mi (55.82 km) |
| Altadena to Castle Pines (Colorado) | 817.81 mi (1,316.14 km) |
