| Alpen to Caguas (Puerto Rico) | 4,493.31 mi (7,231.29 km) |
| Alpen to Cahokia (Illinois) | 4,451.04 mi (7,163.25 km) |
| Alpen to Calabasas (California) | 5,649.31 mi (9,091.68 km) |
| Alpen to Caldwell (Idaho) | 5,034.41 mi (8,102.09 km) |
| Alpen to Caledonia (Wisconsin) | 4,157.56 mi (6,690.95 km) |
| Alpen to Calera (Alabama) | 4,595.59 mi (7,395.88 km) |
| Alpen to Calexico (California) | 5,639.07 mi (9,075.20 km) |
| Alpen to Calhoun (Georgia) | 4,455.86 mi (7,171.01 km) |
| Alpen to California (Maryland) | 3,937.11 mi (6,336.17 km) |
| Alpen to California City (California) | 5,565.55 mi (8,956.89 km) |
| Alpen to Callaway (Florida) | 4,701.36 mi (7,566.11 km) |
| Alpen to Calumet City (Illinois) | 4,203.19 mi (6,764.37 km) |
| Alpen to Calverton (Maryland) | 3,919.63 mi (6,308.03 km) |
| Alpen to Camano (Washington) | 4,915.40 mi (7,910.57 km) |
| Alpen to Camarillo (California) | 5,654.87 mi (9,100.63 km) |
