| Tomball to Castle Pines (Colorado) | 832.37 mi (1,339.57 km) |
| Tomball to Castle Rock (Colorado) | 827.32 mi (1,331.45 km) |
| Tomball to Castro Valley (California) | 1,598.58 mi (2,572.67 km) |
| Tomball to Catalina Foothills (Arizona) | 914.13 mi (1,471.15 km) |
| Tomball to Cataño (Puerto Rico) | 2,015.79 mi (3,244.09 km) |
| Tomball to Cathedral City (California) | 1,246.56 mi (2,006.15 km) |
| Tomball to Catonsville (Maryland) | 1,241.93 mi (1,998.69 km) |
| Tomball to Cave Spring (Virginia) | 1,022.19 mi (1,645.05 km) |
| Tomball to Cayce (South Carolina) | 893.45 mi (1,437.86 km) |
| Tomball to Cayey (Puerto Rico) | 2,025.64 mi (3,259.96 km) |
| Tomball to Cedar City (Utah) | 1,128.59 mi (1,816.29 km) |
| Tomball to Cedar Falls (Iowa) | 876.17 mi (1,410.06 km) |
| Tomball to Cedar Hill (Texas) | 189.08 mi (304.29 km) |
| Tomball to Cedar Lake (Indiana) | 903.04 mi (1,453.30 km) |
| Tomball to Cedar Mill (Oregon) | 1,812.73 mi (2,917.31 km) |
