| Mason City to Home Gardens (California) | 1,454.90 mi (2,341.44 km) |
| Mason City to Homer Glen (Illinois) | 288.37 mi (464.08 km) |
| Mason City to Homestead (Florida) | 1,418.27 mi (2,282.49 km) |
| Mason City to Homewood (Alabama) | 753.09 mi (1,211.98 km) |
| Mason City to Homewood (Illinois) | 303.31 mi (488.13 km) |
| Mason City to Homosassa Springs (Florida) | 1,153.84 mi (1,856.93 km) |
| Mason City to Honeygo (Maryland) | 906.67 mi (1,459.14 km) |
| Mason City to Honolulu (Hawaii) | 3,961.29 mi (6,375.07 km) |
| Mason City to Hoover (Alabama) | 758.49 mi (1,220.67 km) |
| Mason City to Hopatcong (New Jersey) | 961.18 mi (1,546.86 km) |
| Mason City to Hope Mills (North Carolina) | 948.03 mi (1,525.71 km) |
| Mason City to Hopewell (Virginia) | 929.37 mi (1,495.67 km) |
| Mason City to Hopkins (Minnesota) | 123.22 mi (198.30 km) |
| Mason City to Hopkinsville (Kentucky) | 530.60 mi (853.92 km) |
| Mason City to Horizon City (Texas) | 1,063.32 mi (1,711.26 km) |
