| Humacao to Carrollwood (Florida) | 1,260.34 mi (2,028.32 km) |
| Humacao to Carson (California) | 3,392.87 mi (5,460.29 km) |
| Humacao to Carson City (Nevada) | 3,517.31 mi (5,660.56 km) |
| Humacao to Carteret (New Jersey) | 1,628.54 mi (2,620.89 km) |
| Humacao to Cartersville (Georgia) | 1,609.81 mi (2,590.74 km) |
| Humacao to Carthage (Missouri) | 2,168.15 mi (3,489.30 km) |
| Humacao to Cary (Illinois) | 2,121.01 mi (3,413.43 km) |
| Humacao to Cary (North Carolina) | 1,454.30 mi (2,340.46 km) |
| Humacao to Casa de Oro-Mount Helix (California) | 3,312.63 mi (5,331.17 km) |
| Humacao to Casa Grande (Arizona) | 3,013.39 mi (4,849.58 km) |
| Humacao to Casas Adobes (Arizona) | 2,964.63 mi (4,771.12 km) |
| Humacao to Cascades (Virginia) | 1,601.80 mi (2,577.84 km) |
| Humacao to Casper (Wyoming) | 2,910.79 mi (4,684.47 km) |
| Humacao to Casselberry (Florida) | 1,219.95 mi (1,963.31 km) |
| Humacao to Castaic (California) | 3,418.15 mi (5,500.98 km) |
