| Castle Rock to Illzach | 5,121.41 mi (8,242.11 km) |
| Castle Rock to Ingre | 4,919.71 mi (7,917.51 km) |
| Castle Rock to Irigny | 5,127.99 mi (8,252.70 km) |
| Castle Rock to Isbergues | 4,826.17 mi (7,766.97 km) |
| Castle Rock to Issoire | 5,075.85 mi (8,168.79 km) |
| Castle Rock to Issoudun | 4,967.90 mi (7,995.07 km) |
| Castle Rock to Issy-les-Moulineaux | 4,896.81 mi (7,880.66 km) |
| Castle Rock to Istres | 5,232.24 mi (8,420.48 km) |
| Castle Rock to Ivry-sur-Seine | 4,901.23 mi (7,887.77 km) |
| Castle Rock to Jarville-la-Malgrange | 5,041.43 mi (8,113.39 km) |
| Castle Rock to Jeumont | 4,896.82 mi (7,880.67 km) |
| Castle Rock to Joigny | 4,973.60 mi (8,004.23 km) |
| Castle Rock to Joinville-le-Pont | 4,904.13 mi (7,892.43 km) |
| Castle Rock to Joue-les-Tours | 4,901.60 mi (7,888.37 km) |
| Castle Rock to Jouy-le-Moutier | 4,880.56 mi (7,854.50 km) |
