| Houston to Carlsbad (California) | 1,308.43 mi (2,105.71 km) |
| Houston to Carlsbad (New Mexico) | 553.71 mi (891.12 km) |
| Houston to Carmel (Indiana) | 875.86 mi (1,409.56 km) |
| Houston to Carmichael (California) | 1,596.14 mi (2,568.73 km) |
| Houston to Carney (Maryland) | 1,258.18 mi (2,024.84 km) |
| Houston to Carnot-Moon (Pennsylvania) | 1,130.32 mi (1,819.07 km) |
| Houston to Carol Stream (Illinois) | 930.70 mi (1,497.81 km) |
| Houston to Carolina (Puerto Rico) | 2,006.98 mi (3,229.93 km) |
| Houston to Carolina Forest (South Carolina) | 1,004.73 mi (1,616.95 km) |
| Houston to Carpentersville (Illinois) | 939.44 mi (1,511.89 km) |
| Houston to Carpinteria (California) | 1,443.85 mi (2,323.65 km) |
| Houston to Carrboro (North Carolina) | 1,035.07 mi (1,665.78 km) |
| Houston to Carroll (Iowa) | 849.24 mi (1,366.71 km) |
| Houston to Carrollton (Georgia) | 659.77 mi (1,061.80 km) |
| Houston to Carrollton (Texas) | 238.58 mi (383.95 km) |
