| Humble to Cadillac (Michigan) | 1,122.67 mi (1,806.77 km) |
| Humble to Caguas (Puerto Rico) | 2,006.43 mi (3,229.04 km) |
| Humble to Cahokia (Illinois) | 659.38 mi (1,061.17 km) |
| Humble to Calabasas (California) | 1,396.65 mi (2,247.70 km) |
| Humble to Caldwell (Idaho) | 1,505.47 mi (2,422.82 km) |
| Humble to Caledonia (Wisconsin) | 974.63 mi (1,568.51 km) |
| Humble to Calera (Alabama) | 546.13 mi (878.91 km) |
| Humble to Calexico (California) | 1,206.28 mi (1,941.33 km) |
| Humble to Calhoun (Georgia) | 678.34 mi (1,091.68 km) |
| Humble to California (Maryland) | 1,213.79 mi (1,953.41 km) |
| Humble to California City (California) | 1,360.41 mi (2,189.36 km) |
| Humble to Callaway (Florida) | 580.47 mi (934.18 km) |
| Humble to Calumet City (Illinois) | 910.99 mi (1,466.09 km) |
| Humble to Calverton (Maryland) | 1,212.86 mi (1,951.90 km) |
| Humble to Camano (Washington) | 1,907.66 mi (3,070.08 km) |
