| Mason City to Grand Junction (Colorado) | 846.19 mi (1,361.82 km) |
| Mason City to Grand Prairie (Texas) | 752.00 mi (1,210.23 km) |
| Mason City to Grand Rapids (Michigan) | 380.93 mi (613.05 km) |
| Mason City to Grand Rapids (Minnesota) | 283.01 mi (455.46 km) |
| Mason City to Grand Terrace (California) | 1,439.61 mi (2,316.82 km) |
| Mason City to Grandview (Missouri) | 302.87 mi (487.42 km) |
| Mason City to Grandview (Washington) | 1,322.67 mi (2,128.63 km) |
| Mason City to Grandville (Michigan) | 376.24 mi (605.50 km) |
| Mason City to Granger (Indiana) | 373.05 mi (600.37 km) |
| Mason City to Granite Bay (California) | 1,483.45 mi (2,387.38 km) |
| Mason City to Granite City (Illinois) | 344.83 mi (554.95 km) |
| Mason City to Grants Pass (Oregon) | 1,520.32 mi (2,446.72 km) |
| Mason City to Grantsville (Utah) | 1,004.69 mi (1,616.89 km) |
| Mason City to Grapevine (Texas) | 736.33 mi (1,185.01 km) |
| Mason City to Grass Valley (California) | 1,466.36 mi (2,359.89 km) |
