| San Marcos to Beltsville (Maryland) | 2,265.46 mi (3,645.91 km) |
| San Marcos to Belvedere Park (Georgia) | 1,890.02 mi (3,041.69 km) |
| San Marcos to Belvidere (Illinois) | 1,661.29 mi (2,673.59 km) |
| San Marcos to Bemidji (Minnesota) | 1,527.21 mi (2,457.81 km) |
| San Marcos to Benbrook (Texas) | 1,142.12 mi (1,838.06 km) |
| San Marcos to Bend (Oregon) | 786.65 mi (1,265.99 km) |
| San Marcos to Benicia (California) | 440.97 mi (709.68 km) |
| San Marcos to Bensenville (Illinois) | 1,703.13 mi (2,740.92 km) |
| San Marcos to Bensville (Maryland) | 2,262.14 mi (3,640.57 km) |
| San Marcos to Benton (Arkansas) | 1,411.69 mi (2,271.90 km) |
| San Marcos to Bentonville (Arkansas) | 1,318.24 mi (2,121.50 km) |
| San Marcos to Berea (Kentucky) | 1,868.56 mi (3,007.16 km) |
| San Marcos to Berea (Ohio) | 2,008.10 mi (3,231.72 km) |
| San Marcos to Berea (South Carolina) | 1,981.75 mi (3,189.32 km) |
| San Marcos to Bergenfield (New Jersey) | 2,416.07 mi (3,888.29 km) |
