| San Marcos to Greenwood (South Carolina) | 2,005.26 mi (3,227.16 km) |
| San Marcos to Greenwood Village (Colorado) | 814.74 mi (1,311.20 km) |
| San Marcos to Greer (South Carolina) | 1,994.49 mi (3,209.82 km) |
| San Marcos to Grenada (Mississippi) | 1,573.20 mi (2,531.81 km) |
| San Marcos to Gresham (Oregon) | 899.14 mi (1,447.03 km) |
| San Marcos to Gretna (Louisiana) | 1,608.38 mi (2,588.44 km) |
| San Marcos to Griffin (Georgia) | 1,894.34 mi (3,048.64 km) |
| San Marcos to Griffith (Indiana) | 1,724.00 mi (2,774.51 km) |
| San Marcos to Grimes (Iowa) | 1,406.41 mi (2,263.40 km) |
| San Marcos to Grosse Pointe Park (Michigan) | 1,961.22 mi (3,156.29 km) |
| San Marcos to Grosse Pointe Woods (Michigan) | 1,963.27 mi (3,159.57 km) |
| San Marcos to Grove City (Ohio) | 1,937.85 mi (3,118.67 km) |
| San Marcos to Groveland (Florida) | 2,109.53 mi (3,394.96 km) |
| San Marcos to Grover Beach (California) | 240.08 mi (386.37 km) |
| San Marcos to Groves (Texas) | 1,384.24 mi (2,227.72 km) |
