| San Marcos to St. Simons (Georgia) | 2,087.69 mi (3,359.81 km) |
| San Marcos to Stafford (Texas) | 1,295.03 mi (2,084.14 km) |
| San Marcos to Stallings (North Carolina) | 2,081.38 mi (3,349.66 km) |
| San Marcos to Stamford (Connecticut) | 2,438.70 mi (3,924.71 km) |
| San Marcos to Stanford (California) | 408.74 mi (657.81 km) |
| San Marcos to Stanton (California) | 65.90 mi (106.05 km) |
| San Marcos to Star (Idaho) | 731.08 mi (1,176.56 km) |
| San Marcos to Starkville (Mississippi) | 1,631.94 mi (2,626.35 km) |
| San Marcos to State College (Pennsylvania) | 2,214.47 mi (3,563.85 km) |
| San Marcos to Staten Island (New York) | 2,408.76 mi (3,876.53 km) |
| San Marcos to Statesboro (Georgia) | 2,046.91 mi (3,294.19 km) |
| San Marcos to Statesville (North Carolina) | 2,064.47 mi (3,322.44 km) |
| San Marcos to Staunton (Virginia) | 2,152.57 mi (3,464.23 km) |
| San Marcos to Steamboat Springs (Colorado) | 764.00 mi (1,229.54 km) |
| San Marcos to Steiner Ranch (Texas) | 1,147.01 mi (1,845.94 km) |
