| Mason City to Red Bank (New Jersey) | 1,002.73 mi (1,613.74 km) |
| Mason City to Red Bank (Tennessee) | 697.71 mi (1,122.86 km) |
| Mason City to Red Bluff (California) | 1,505.44 mi (2,422.77 km) |
| Mason City to Red Hill (South Carolina) | 1,001.74 mi (1,612.14 km) |
| Mason City to Red Oak (Texas) | 759.72 mi (1,222.65 km) |
| Mason City to Red Wing (Minnesota) | 103.37 mi (166.35 km) |
| Mason City to Redan (Georgia) | 812.39 mi (1,307.41 km) |
| Mason City to Redding (California) | 1,503.69 mi (2,419.96 km) |
| Mason City to Redland (Maryland) | 878.50 mi (1,413.81 km) |
| Mason City to Redlands (California) | 1,432.04 mi (2,304.65 km) |
| Mason City to Redmond (Oregon) | 1,392.95 mi (2,241.73 km) |
| Mason City to Redmond (Washington) | 1,428.13 mi (2,298.36 km) |
| Mason City to Redondo Beach (California) | 1,497.28 mi (2,409.63 km) |
| Mason City to Redwood City (California) | 1,569.29 mi (2,525.52 km) |
| Mason City to Reedley (California) | 1,456.48 mi (2,343.97 km) |
