| Mason City to Shoreview (Minnesota) | 133.77 mi (215.28 km) |
| Mason City to Shorewood (Illinois) | 278.41 mi (448.05 km) |
| Mason City to Shorewood (Wisconsin) | 267.95 mi (431.22 km) |
| Mason City to Short Hills (New Jersey) | 981.86 mi (1,580.16 km) |
| Mason City to Short Pump (Virginia) | 901.48 mi (1,450.79 km) |
| Mason City to Show Low (Arizona) | 1,092.55 mi (1,758.29 km) |
| Mason City to Shreveport (Louisiana) | 738.86 mi (1,189.08 km) |
| Mason City to Sicklerville (New Jersey) | 969.64 mi (1,560.49 km) |
| Mason City to Sidney (Ohio) | 505.67 mi (813.80 km) |
| Mason City to Sierra Madre (California) | 1,469.97 mi (2,365.69 km) |
| Mason City to Sierra Vista (Arizona) | 1,230.32 mi (1,980.00 km) |
| Mason City to Sierra Vista Southeast (Arizona) | 1,231.68 mi (1,982.19 km) |
| Mason City to Signal Hill (California) | 1,489.29 mi (2,396.78 km) |
| Mason City to Sikeston (Missouri) | 472.96 mi (761.15 km) |
| Mason City to Siloam Springs (Arkansas) | 486.35 mi (782.71 km) |
