| San Marcos to St. George (Utah) | 339.82 mi (546.89 km) |
| San Marcos to St. Helens (Oregon) | 928.44 mi (1,494.18 km) |
| San Marcos to St. James (New York) | 2,460.33 mi (3,959.52 km) |
| San Marcos to St. John (Indiana) | 1,720.66 mi (2,769.14 km) |
| San Marcos to St. Joseph (Missouri) | 1,319.66 mi (2,123.78 km) |
| San Marcos to St. Louis (Missouri) | 1,548.50 mi (2,492.07 km) |
| San Marcos to St. Louis Park (Minnesota) | 1,507.36 mi (2,425.87 km) |
| San Marcos to St. Marys (Georgia) | 2,083.82 mi (3,353.59 km) |
| San Marcos to St. Marys (Pennsylvania) | 2,180.66 mi (3,509.43 km) |
| San Marcos to St. Matthews (Kentucky) | 1,795.50 mi (2,889.58 km) |
| San Marcos to St. Michael (Minnesota) | 1,500.30 mi (2,414.50 km) |
| San Marcos to St. Paul (Minnesota) | 1,518.96 mi (2,444.53 km) |
| San Marcos to St. Peter (Minnesota) | 1,462.85 mi (2,354.22 km) |
| San Marcos to St. Peters (Missouri) | 1,530.25 mi (2,462.70 km) |
| San Marcos to St. Petersburg (Florida) | 2,078.49 mi (3,345.00 km) |
