| Houston to Castle Pines (Colorado) | 857.76 mi (1,380.43 km) |
| Houston to Castle Rock (Colorado) | 852.71 mi (1,372.31 km) |
| Houston to Castro Valley (California) | 1,620.50 mi (2,607.94 km) |
| Houston to Catalina Foothills (Arizona) | 932.74 mi (1,501.10 km) |
| Houston to Cataño (Puerto Rico) | 1,996.44 mi (3,212.96 km) |
| Houston to Cathedral City (California) | 1,266.25 mi (2,037.84 km) |
| Houston to Catonsville (Maryland) | 1,243.41 mi (2,001.07 km) |
| Houston to Cave Spring (Virginia) | 1,022.48 mi (1,645.52 km) |
| Houston to Cayce (South Carolina) | 888.55 mi (1,429.99 km) |
| Houston to Cayey (Puerto Rico) | 2,006.12 mi (3,228.54 km) |
| Houston to Cedar City (Utah) | 1,151.75 mi (1,853.56 km) |
| Houston to Cedar Falls (Iowa) | 894.74 mi (1,439.95 km) |
| Houston to Cedar Hill (Texas) | 214.26 mi (344.82 km) |
| Houston to Cedar Lake (Indiana) | 915.58 mi (1,473.49 km) |
| Houston to Cedar Mill (Oregon) | 1,837.49 mi (2,957.15 km) |
