| Mason City to Hamtramck (Michigan) | 516.78 mi (831.68 km) |
| Mason City to Hanahan (South Carolina) | 1,004.71 mi (1,616.93 km) |
| Mason City to Hanford (California) | 1,475.18 mi (2,374.07 km) |
| Mason City to Hannibal (Missouri) | 255.34 mi (410.93 km) |
| Mason City to Hanover (Pennsylvania) | 868.92 mi (1,398.39 km) |
| Mason City to Hanover Park (Illinois) | 269.53 mi (433.77 km) |
| Mason City to Happy Valley (Oregon) | 1,449.95 mi (2,333.46 km) |
| Mason City to Harker Heights (Texas) | 870.25 mi (1,400.54 km) |
| Mason City to Harlingen (Texas) | 1,198.69 mi (1,929.10 km) |
| Mason City to Harper Woods (Michigan) | 522.69 mi (841.19 km) |
| Mason City to Harrisburg (North Carolina) | 861.13 mi (1,385.86 km) |
| Mason City to Harrisburg (Pennsylvania) | 863.10 mi (1,389.03 km) |
| Mason City to Harrison (Arkansas) | 477.10 mi (767.82 km) |
| Mason City to Harrison (New Jersey) | 990.58 mi (1,594.18 km) |
| Mason City to Harrison (New York) | 1,007.28 mi (1,621.06 km) |
