| San Marcos to Fort Madison (Iowa) | 1,511.34 mi (2,432.26 km) |
| San Marcos to Fort Meade (Maryland) | 2,274.78 mi (3,660.91 km) |
| San Marcos to Fort Mill (South Carolina) | 2,066.57 mi (3,325.82 km) |
| San Marcos to Fort Mohave (Arizona) | 196.83 mi (316.77 km) |
| San Marcos to Fort Morgan (Colorado) | 888.23 mi (1,429.46 km) |
| San Marcos to Fort Myers (Florida) | 2,154.18 mi (3,466.82 km) |
| San Marcos to Fort Oglethorpe (Georgia) | 1,824.65 mi (2,936.49 km) |
| San Marcos to Fort Payne (Alabama) | 1,802.45 mi (2,900.77 km) |
| San Marcos to Fort Pierce (Florida) | 2,221.14 mi (3,574.58 km) |
| San Marcos to Fort Smith (Arkansas) | 1,308.57 mi (2,105.95 km) |
| San Marcos to Fort Thomas (Kentucky) | 1,861.56 mi (2,995.89 km) |
| San Marcos to Fort Walton Beach (Florida) | 1,797.86 mi (2,893.37 km) |
| San Marcos to Fort Washington (Maryland) | 2,261.79 mi (3,640.00 km) |
| San Marcos to Fort Wayne (Indiana) | 1,836.60 mi (2,955.72 km) |
| San Marcos to Fort Worth (Texas) | 1,147.99 mi (1,847.51 km) |
