| Humacao to Cadillac (Michigan) | 2,130.66 mi (3,428.97 km) |
| Humacao to Caguas (Puerto Rico) | 15.36 mi (24.72 km) |
| Humacao to Cahokia (Illinois) | 2,032.57 mi (3,271.10 km) |
| Humacao to Calabasas (California) | 3,418.19 mi (5,501.05 km) |
| Humacao to Caldwell (Idaho) | 3,421.14 mi (5,505.80 km) |
| Humacao to Caledonia (Wisconsin) | 2,136.46 mi (3,438.30 km) |
| Humacao to Calera (Alabama) | 1,658.05 mi (2,668.38 km) |
| Humacao to Calexico (California) | 3,226.79 mi (5,193.01 km) |
| Humacao to Calhoun (Georgia) | 1,630.07 mi (2,623.34 km) |
| Humacao to California (Maryland) | 1,533.36 mi (2,467.70 km) |
| Humacao to California City (California) | 3,379.91 mi (5,439.45 km) |
| Humacao to Callaway (Florida) | 1,490.72 mi (2,399.09 km) |
| Humacao to Calumet City (Illinois) | 2,066.31 mi (3,325.41 km) |
| Humacao to Calverton (Maryland) | 1,591.28 mi (2,560.91 km) |
| Humacao to Camano (Washington) | 3,766.69 mi (6,061.90 km) |
