| Mason City to Grayslake (Illinois) | 267.96 mi (431.24 km) |
| Mason City to Great Bend (Kansas) | 441.90 mi (711.17 km) |
| Mason City to Great Falls (Montana) | 926.71 mi (1,491.40 km) |
| Mason City to Great Falls (Virginia) | 874.34 mi (1,407.11 km) |
| Mason City to Great Neck (New York) | 1,010.59 mi (1,626.38 km) |
| Mason City to Greeley (Colorado) | 624.74 mi (1,005.43 km) |
| Mason City to Green (Ohio) | 619.86 mi (997.57 km) |
| Mason City to Green Bay (Wisconsin) | 276.25 mi (444.58 km) |
| Mason City to Green River (Wyoming) | 837.41 mi (1,347.68 km) |
| Mason City to Green Valley (Arizona) | 1,245.58 mi (2,004.56 km) |
| Mason City to Green Valley (Maryland) | 868.26 mi (1,397.32 km) |
| Mason City to Greenacres (Florida) | 1,356.85 mi (2,183.63 km) |
| Mason City to Greenbelt (Maryland) | 895.02 mi (1,440.40 km) |
| Mason City to Greendale (Wisconsin) | 262.84 mi (423.00 km) |
| Mason City to Greeneville (Tennessee) | 732.11 mi (1,178.22 km) |
