| Tomball to Groveton (Virginia) | 1,210.13 mi (1,947.51 km) |
| Tomball to Grovetown (Georgia) | 820.50 mi (1,320.47 km) |
| Tomball to Guayama (Puerto Rico) | 2,033.47 mi (3,272.55 km) |
| Tomball to Guaynabo (Puerto Rico) | 2,019.37 mi (3,249.86 km) |
| Tomball to Gulf Shores (Alabama) | 472.95 mi (761.14 km) |
| Tomball to Gulfport (Florida) | 796.93 mi (1,282.53 km) |
| Tomball to Gulfport (Mississippi) | 391.45 mi (629.98 km) |
| Tomball to Gunbarrel (Colorado) | 874.07 mi (1,406.68 km) |
| Tomball to Gurnee (Illinois) | 949.04 mi (1,527.33 km) |
| Tomball to Guthrie (Oklahoma) | 410.81 mi (661.13 km) |
| Tomball to Guttenberg (New Jersey) | 1,417.66 mi (2,281.51 km) |
| Tomball to Guymon (Oklahoma) | 567.03 mi (912.55 km) |
| Tomball to Hacienda Heights (California) | 1,333.74 mi (2,146.44 km) |
| Tomball to Hackensack (New Jersey) | 1,418.49 mi (2,282.84 km) |
| Tomball to Hackettstown (New Jersey) | 1,380.67 mi (2,221.97 km) |
