| Hard to Brownsburg (Indiana) | 4,514.29 mi (7,265.05 km) |
| Hard to Brownsville (Florida) | 4,921.37 mi (7,920.17 km) |
| Hard to Brownsville (Texas) | 5,646.17 mi (9,086.64 km) |
| Hard to Brownwood (Texas) | 5,407.10 mi (8,701.89 km) |
| Hard to Brunswick (Georgia) | 4,720.11 mi (7,596.29 km) |
| Hard to Brunswick (Ohio) | 4,269.67 mi (6,871.37 km) |
| Hard to Brushy Creek (Texas) | 5,421.64 mi (8,725.28 km) |
| Hard to Bryan (Texas) | 5,360.33 mi (8,626.61 km) |
| Hard to Bryant (Arkansas) | 5,006.37 mi (8,056.98 km) |
| Hard to Bryn Mawr-Skyway (Washington) | 5,265.66 mi (8,474.26 km) |
| Hard to Buckeye (Arizona) | 5,803.89 mi (9,340.46 km) |
| Hard to Buckhall (Virginia) | 4,202.67 mi (6,763.54 km) |
| Hard to Bucyrus (Ohio) | 4,335.19 mi (6,976.81 km) |
| Hard to Buda (Texas) | 5,448.71 mi (8,768.85 km) |
| Hard to Buena Park (California) | 5,950.70 mi (9,576.72 km) |
