| Boulder to Haverhill (Massachusetts) | 1,768.64 mi (2,846.34 km) |
| Boulder to Havre de Grace (Maryland) | 1,540.45 mi (2,479.12 km) |
| Boulder to Hawaiian Gardens (California) | 826.15 mi (1,329.55 km) |
| Boulder to Hawaiian Paradise Park (Hawaii) | 3,247.21 mi (5,225.88 km) |
| Boulder to Hawthorne (California) | 835.84 mi (1,345.15 km) |
| Boulder to Hawthorne (New Jersey) | 1,626.50 mi (2,617.60 km) |
| Boulder to Hayden (Idaho) | 783.94 mi (1,261.63 km) |
| Boulder to Hayesville (Oregon) | 962.97 mi (1,549.75 km) |
| Boulder to Hays (Kansas) | 326.01 mi (524.67 km) |
| Boulder to Haysville (Kansas) | 457.89 mi (736.91 km) |
| Boulder to Hayward (California) | 919.07 mi (1,479.10 km) |
| Boulder to Hazel Crest (Illinois) | 923.18 mi (1,485.71 km) |
| Boulder to Hazel Dell (Washington) | 961.60 mi (1,547.55 km) |
| Boulder to Hazel Park (Michigan) | 1,159.85 mi (1,866.60 km) |
| Boulder to Hazelwood (Missouri) | 797.03 mi (1,282.69 km) |
