| Romulus to Illzach | 4,184.35 mi (6,734.06 km) |
| Romulus to Ingre | 3,958.29 mi (6,370.25 km) |
| Romulus to Irigny | 4,158.83 mi (6,693.00 km) |
| Romulus to Isbergues | 3,895.43 mi (6,269.09 km) |
| Romulus to Issoire | 4,098.30 mi (6,595.58 km) |
| Romulus to Issoudun | 3,997.81 mi (6,433.85 km) |
| Romulus to Issy-les-Moulineaux | 3,946.40 mi (6,351.11 km) |
| Romulus to Istres | 4,244.85 mi (6,831.42 km) |
| Romulus to Ivry-sur-Seine | 3,951.12 mi (6,358.71 km) |
| Romulus to Jarville-la-Malgrange | 4,107.62 mi (6,610.58 km) |
| Romulus to Jeumont | 3,969.95 mi (6,389.02 km) |
| Romulus to Joigny | 4,019.81 mi (6,469.26 km) |
| Romulus to Joinville-le-Pont | 3,954.59 mi (6,364.29 km) |
| Romulus to Joue-les-Tours | 3,929.60 mi (6,324.07 km) |
| Romulus to Jouy-le-Moutier | 3,931.02 mi (6,326.37 km) |
