| Castle Rock to East Rancho Dominguez (California) | 829.85 mi (1,335.51 km) |
| Castle Rock to East Renton Highlands (Washington) | 1,026.33 mi (1,651.72 km) |
| Castle Rock to East Ridge (Tennessee) | 1,119.26 mi (1,801.27 km) |
| Castle Rock to East Riverdale (Maryland) | 1,491.09 mi (2,399.68 km) |
| Castle Rock to East San Gabriel (California) | 816.33 mi (1,313.76 km) |
| Castle Rock to East St. Louis (Illinois) | 791.48 mi (1,273.76 km) |
| Castle Rock to East Wenatchee (Washington) | 950.43 mi (1,529.56 km) |
| Castle Rock to Eastern Goleta Valley (California) | 891.23 mi (1,434.29 km) |
| Castle Rock to Eastlake (Ohio) | 1,236.40 mi (1,989.79 km) |
| Castle Rock to Eastmont (Washington) | 1,043.79 mi (1,679.83 km) |
| Castle Rock to Easton (Maryland) | 1,537.87 mi (2,474.97 km) |
| Castle Rock to Easton (Pennsylvania) | 1,562.88 mi (2,515.21 km) |
| Castle Rock to Eastpointe (Michigan) | 1,160.08 mi (1,866.97 km) |
| Castle Rock to Eastvale (California) | 797.32 mi (1,283.15 km) |
| Castle Rock to Eatontown (New Jersey) | 1,627.01 mi (2,618.43 km) |
