| San Marcos to Tacoma (Washington) | 1,013.19 mi (1,630.58 km) |
| San Marcos to Tahlequah (Oklahoma) | 1,275.25 mi (2,052.31 km) |
| San Marcos to Takoma Park (Maryland) | 2,261.24 mi (3,639.12 km) |
| San Marcos to Talladega (Alabama) | 1,788.26 mi (2,877.93 km) |
| San Marcos to Tallahassee (Florida) | 1,934.27 mi (3,112.90 km) |
| San Marcos to Tallmadge (Ohio) | 2,029.57 mi (3,266.28 km) |
| San Marcos to Tamalpais-Homestead Valley (California) | 445.33 mi (716.69 km) |
| San Marcos to Tamarac (Florida) | 2,255.51 mi (3,629.89 km) |
| San Marcos to Tamiami (Florida) | 2,258.37 mi (3,634.49 km) |
| San Marcos to Tampa (Florida) | 2,086.79 mi (3,358.36 km) |
| San Marcos to Tanaina (Alaska) | 2,431.07 mi (3,912.43 km) |
| San Marcos to Tanque Verde (Arizona) | 378.58 mi (609.27 km) |
| San Marcos to Tarboro (North Carolina) | 2,248.12 mi (3,618.00 km) |
| San Marcos to Tarpon Springs (Florida) | 2,065.04 mi (3,323.37 km) |
| San Marcos to Tarrytown (New York) | 2,422.69 mi (3,898.94 km) |
