| Waterloo to Marysville (California) | 5,419.93 mi (8,722.54 km) |
| Waterloo to Marysville (Ohio) | 4,058.52 mi (6,531.56 km) |
| Waterloo to Marysville (Washington) | 4,911.77 mi (7,904.73 km) |
| Waterloo to Maryville (Missouri) | 4,487.34 mi (7,221.67 km) |
| Waterloo to Maryville (Tennessee) | 4,295.41 mi (6,912.80 km) |
| Waterloo to Mason (Ohio) | 4,136.09 mi (6,656.39 km) |
| Waterloo to Mason City (Iowa) | 4,288.62 mi (6,901.87 km) |
| Waterloo to Massapequa (New York) | 3,643.87 mi (5,864.24 km) |
| Waterloo to Massapequa Park (New York) | 3,642.40 mi (5,861.88 km) |
| Waterloo to Massillon (Ohio) | 3,961.11 mi (6,374.79 km) |
| Waterloo to Mastic (New York) | 3,612.32 mi (5,813.46 km) |
| Waterloo to Mastic Beach (New York) | 3,613.73 mi (5,815.74 km) |
| Waterloo to Matteson (Illinois) | 4,166.79 mi (6,705.80 km) |
| Waterloo to Matthews (North Carolina) | 4,193.07 mi (6,748.09 km) |
| Waterloo to Mattoon (Illinois) | 4,287.27 mi (6,899.69 km) |
