| Mason City to Spout Springs (North Carolina) | 931.37 mi (1,498.90 km) |
| Mason City to Spring (Texas) | 912.23 mi (1,468.09 km) |
| Mason City to Spring Creek (Nevada) | 1,159.41 mi (1,865.89 km) |
| Mason City to Spring Hill (Florida) | 1,174.41 mi (1,890.03 km) |
| Mason City to Spring Hill (Tennessee) | 611.40 mi (983.96 km) |
| Mason City to Spring Lake (North Carolina) | 936.89 mi (1,507.77 km) |
| Mason City to Spring Valley (California) | 1,474.58 mi (2,373.11 km) |
| Mason City to Spring Valley (Nevada) | 1,266.52 mi (2,038.26 km) |
| Mason City to Spring Valley (New York) | 989.08 mi (1,591.78 km) |
| Mason City to Springboro (Ohio) | 526.48 mi (847.29 km) |
| Mason City to Springdale (Arkansas) | 483.47 mi (778.07 km) |
| Mason City to Springdale (New Jersey) | 967.63 mi (1,557.25 km) |
| Mason City to Springdale (Ohio) | 525.52 mi (845.74 km) |
| Mason City to Springfield (Illinois) | 296.88 mi (477.78 km) |
| Mason City to Springfield (Massachusetts) | 1,049.98 mi (1,689.77 km) |
