| Waterloo to Wichita (Kansas) | 4,712.09 mi (7,583.38 km) |
| Waterloo to Wichita Falls (Texas) | 4,952.44 mi (7,970.18 km) |
| Waterloo to Wickliffe (Ohio) | 3,921.44 mi (6,310.95 km) |
| Waterloo to Wildomar (California) | 5,614.61 mi (9,035.83 km) |
| Waterloo to Wildwood (Florida) | 4,556.71 mi (7,333.32 km) |
| Waterloo to Wildwood (Missouri) | 4,418.80 mi (7,111.37 km) |
| Waterloo to Wilkes-Barre (Pennsylvania) | 3,715.96 mi (5,980.26 km) |
| Waterloo to Wilkinsburg (Pennsylvania) | 3,911.37 mi (6,294.73 km) |
| Waterloo to Williamsburg (Virginia) | 3,928.34 mi (6,322.05 km) |
| Waterloo to Williamsport (Pennsylvania) | 3,762.80 mi (6,055.64 km) |
| Waterloo to Williamstown (New Jersey) | 3,748.37 mi (6,032.42 km) |
| Waterloo to Willimantic (Connecticut) | 3,547.51 mi (5,709.16 km) |
| Waterloo to Williston (North Dakota) | 4,387.18 mi (7,060.48 km) |
| Waterloo to Willmar (Minnesota) | 4,258.05 mi (6,852.66 km) |
| Waterloo to Willoughby (Ohio) | 3,917.33 mi (6,304.33 km) |
