| Marshalltown to Idar-Oberstein | 4,478.32 mi (7,207.15 km) |
| Marshalltown to Idstein | 4,491.90 mi (7,229.02 km) |
| Marshalltown to Illertissen | 4,640.83 mi (7,468.69 km) |
| Marshalltown to Illingen | 4,482.52 mi (7,213.92 km) |
| Marshalltown to Ilmenau | 4,565.25 mi (7,347.05 km) |
| Marshalltown to Ilsede | 4,473.66 mi (7,199.67 km) |
| Marshalltown to Ilsenburg | 4,507.27 mi (7,253.76 km) |
| Marshalltown to Ilsfeld | 4,575.45 mi (7,363.47 km) |
| Marshalltown to Ilvesheim | 4,533.28 mi (7,295.62 km) |
| Marshalltown to Immenstadt im Allgau | 4,673.57 mi (7,521.38 km) |
| Marshalltown to Ingelheim | 4,494.24 mi (7,232.79 km) |
| Marshalltown to Ingolstadt | 4,665.35 mi (7,508.16 km) |
| Marshalltown to Iserlohn | 4,423.14 mi (7,118.36 km) |
| Marshalltown to Isernhagen-Sud | 4,455.71 mi (7,170.77 km) |
| Marshalltown to Ismaning | 4,697.50 mi (7,559.89 km) |
