| Boulder to Hormigueros (Puerto Rico) | 2,722.74 mi (4,381.83 km) |
| Boulder to Horn Lake (Mississippi) | 902.64 mi (1,452.66 km) |
| Boulder to Hot Springs (Arkansas) | 771.36 mi (1,241.39 km) |
| Boulder to Hot Springs Village (Arkansas) | 769.19 mi (1,237.89 km) |
| Boulder to Houma (Louisiana) | 1,093.65 mi (1,760.06 km) |
| Boulder to Houston (Texas) | 900.31 mi (1,448.90 km) |
| Boulder to Howard (Wisconsin) | 929.33 mi (1,495.62 km) |
| Boulder to Huber Heights (Ohio) | 1,117.24 mi (1,798.03 km) |
| Boulder to Hudson (Florida) | 1,513.88 mi (2,436.35 km) |
| Boulder to Hudson (Ohio) | 1,247.47 mi (2,007.61 km) |
| Boulder to Hudson (Wisconsin) | 722.32 mi (1,162.46 km) |
| Boulder to Hueytown (Alabama) | 1,105.07 mi (1,778.44 km) |
| Boulder to Hugo (Minnesota) | 718.05 mi (1,155.60 km) |
| Boulder to Humacao (Puerto Rico) | 2,786.20 mi (4,483.96 km) |
| Boulder to Humble (Texas) | 893.12 mi (1,437.33 km) |
