| San Marcos to Garfield (New Jersey) | 2,410.38 mi (3,879.13 km) |
| San Marcos to Garfield Heights (Ohio) | 2,021.83 mi (3,253.83 km) |
| San Marcos to Garland (Texas) | 1,188.33 mi (1,912.44 km) |
| San Marcos to Garner (North Carolina) | 2,190.77 mi (3,525.70 km) |
| San Marcos to Gary (Indiana) | 1,728.65 mi (2,782.00 km) |
| San Marcos to Gastonia (North Carolina) | 2,050.78 mi (3,300.40 km) |
| San Marcos to Gatesville (Texas) | 1,139.96 mi (1,834.58 km) |
| San Marcos to Gateway (Florida) | 2,160.11 mi (3,476.36 km) |
| San Marcos to Gautier (Mississippi) | 1,680.45 mi (2,704.43 km) |
| San Marcos to Geneva (Illinois) | 1,682.96 mi (2,708.46 km) |
| San Marcos to Geneva (New York) | 2,265.30 mi (3,645.65 km) |
| San Marcos to Georgetown (Georgia) | 2,084.63 mi (3,354.88 km) |
| San Marcos to Georgetown (Kentucky) | 1,854.58 mi (2,984.66 km) |
| San Marcos to Georgetown (Texas) | 1,153.47 mi (1,856.32 km) |
| San Marcos to Germantown (Maryland) | 2,246.72 mi (3,615.75 km) |
