| Mason City to Salisbury (New York) | 1,020.37 mi (1,642.13 km) |
| Mason City to Salisbury (North Carolina) | 851.41 mi (1,370.22 km) |
| Mason City to Salmon Creek (Washington) | 1,456.12 mi (2,343.40 km) |
| Mason City to Salt Lake City (Utah) | 974.06 mi (1,567.60 km) |
| Mason City to Sammamish (Washington) | 1,424.46 mi (2,292.45 km) |
| Mason City to San Angelo (Texas) | 900.80 mi (1,449.69 km) |
| Mason City to San Anselmo (California) | 1,573.68 mi (2,532.59 km) |
| Mason City to San Antonio (Texas) | 990.39 mi (1,593.88 km) |
| Mason City to San Benito (Texas) | 1,202.24 mi (1,934.83 km) |
| Mason City to San Bernardino (California) | 1,434.55 mi (2,308.68 km) |
| Mason City to San Bruno (California) | 1,576.27 mi (2,536.76 km) |
| Mason City to San Buenaventura (California) | 1,523.41 mi (2,451.69 km) |
| Mason City to San Carlos (California) | 1,571.54 mi (2,529.14 km) |
| Mason City to San Carlos Park (Florida) | 1,317.59 mi (2,120.45 km) |
| Mason City to San Clemente (California) | 1,476.05 mi (2,375.47 km) |
