| Castle Rock to Eau Claire (Wisconsin) | 779.95 mi (1,255.20 km) |
| Castle Rock to Echelon (New Jersey) | 1,582.17 mi (2,546.26 km) |
| Castle Rock to Eden (North Carolina) | 1,378.18 mi (2,217.97 km) |
| Castle Rock to Eden Prairie (Minnesota) | 694.71 mi (1,118.04 km) |
| Castle Rock to Edgewater (Florida) | 1,538.14 mi (2,475.40 km) |
| Castle Rock to Edgewater (New Jersey) | 1,626.63 mi (2,617.81 km) |
| Castle Rock to Edgewood (Maryland) | 1,518.29 mi (2,443.46 km) |
| Castle Rock to Edgewood (Washington) | 1,027.31 mi (1,653.30 km) |
| Castle Rock to Edina (Minnesota) | 700.39 mi (1,127.18 km) |
| Castle Rock to Edinburg (Texas) | 981.47 mi (1,579.52 km) |
| Castle Rock to Edmond (Oklahoma) | 481.12 mi (774.29 km) |
| Castle Rock to Edmonds (Washington) | 1,048.10 mi (1,686.76 km) |
| Castle Rock to Edwards (Colorado) | 95.61 mi (153.86 km) |
| Castle Rock to Edwardsville (Illinois) | 797.41 mi (1,283.31 km) |
| Castle Rock to Effingham (Illinois) | 871.29 mi (1,402.21 km) |
