| San Marcos to Pullman (Washington) | 939.57 mi (1,512.10 km) |
| San Marcos to Punta Gorda (Florida) | 2,134.77 mi (3,435.58 km) |
| San Marcos to Puyallup (Washington) | 1,006.69 mi (1,620.11 km) |
| San Marcos to Queen Creek (Arizona) | 321.37 mi (517.19 km) |
| San Marcos to Queens (New York) | 2,426.86 mi (3,905.66 km) |
| San Marcos to Quincy (Illinois) | 1,500.84 mi (2,415.37 km) |
| San Marcos to Quincy (Massachusetts) | 2,567.88 mi (4,132.60 km) |
| San Marcos to Raceland (Louisiana) | 1,577.85 mi (2,539.31 km) |
| San Marcos to Racine (Wisconsin) | 1,720.80 mi (2,769.36 km) |
| San Marcos to Radcliff (Kentucky) | 1,778.61 mi (2,862.39 km) |
| San Marcos to Radford (Virginia) | 2,074.46 mi (3,338.53 km) |
| San Marcos to Rahway (New Jersey) | 2,401.84 mi (3,865.39 km) |
| San Marcos to Raleigh (North Carolina) | 2,188.28 mi (3,521.69 km) |
| San Marcos to Ramona (California) | 18.26 mi (29.39 km) |
| San Marcos to Ramsey (Minnesota) | 1,512.75 mi (2,434.54 km) |
