| Humble to Cibolo (Texas) | 179.13 mi (288.29 km) |
| Humble to Cicero (Illinois) | 919.42 mi (1,479.66 km) |
| Humble to Cimarron Hills (Colorado) | 814.17 mi (1,310.28 km) |
| Humble to Cincinnati (Ohio) | 878.68 mi (1,414.10 km) |
| Humble to Cinco Ranch (Texas) | 34.42 mi (55.40 km) |
| Humble to Circleville (Ohio) | 963.01 mi (1,549.81 km) |
| Humble to Citrus (California) | 1,352.12 mi (2,176.03 km) |
| Humble to Citrus Heights (California) | 1,594.68 mi (2,566.39 km) |
| Humble to Citrus Park (Florida) | 778.32 mi (1,252.59 km) |
| Humble to Claiborne (Louisiana) | 252.48 mi (406.32 km) |
| Humble to Claremont (California) | 1,342.31 mi (2,160.24 km) |
| Humble to Claremont (New Hampshire) | 1,562.72 mi (2,514.96 km) |
| Humble to Claremore (Oklahoma) | 437.29 mi (703.76 km) |
| Humble to Clarksburg (Maryland) | 1,202.64 mi (1,935.46 km) |
| Humble to Clarksburg (West Virginia) | 1,062.40 mi (1,709.77 km) |
