| Mason City to Illzach | 4,516.67 mi (7,268.88 km) |
| Mason City to Ingre | 4,304.79 mi (6,927.88 km) |
| Mason City to Irigny | 4,510.83 mi (7,259.48 km) |
| Mason City to Isbergues | 4,222.77 mi (6,795.89 km) |
| Mason City to Issoire | 4,455.38 mi (7,170.25 km) |
| Mason City to Issoudun | 4,349.87 mi (7,000.45 km) |
| Mason City to Issy-les-Moulineaux | 4,286.01 mi (6,897.67 km) |
| Mason City to Istres | 4,608.60 mi (7,416.82 km) |
| Mason City to Ivry-sur-Seine | 4,290.56 mi (6,904.99 km) |
| Mason City to Jarville-la-Malgrange | 4,437.67 mi (7,141.75 km) |
| Mason City to Jeumont | 4,295.25 mi (6,912.53 km) |
| Mason City to Joigny | 4,361.78 mi (7,019.60 km) |
| Mason City to Joinville-le-Pont | 4,293.69 mi (6,910.03 km) |
| Mason City to Joue-les-Tours | 4,282.65 mi (6,892.25 km) |
| Mason City to Jouy-le-Moutier | 4,270.03 mi (6,871.96 km) |
