| Rockport to Maryland Heights (Missouri) | 830.31 mi (1,336.26 km) |
| Rockport to Marysville (California) | 1,599.03 mi (2,573.39 km) |
| Rockport to Marysville (Ohio) | 1,148.50 mi (1,848.33 km) |
| Rockport to Marysville (Washington) | 1,927.71 mi (3,102.35 km) |
| Rockport to Maryville (Missouri) | 859.97 mi (1,384.00 km) |
| Rockport to Maryville (Tennessee) | 933.66 mi (1,502.59 km) |
| Rockport to Mason (Ohio) | 1,070.85 mi (1,723.37 km) |
| Rockport to Mason City (Iowa) | 1,066.76 mi (1,716.78 km) |
| Rockport to Massapequa (New York) | 1,596.64 mi (2,569.54 km) |
| Rockport to Massapequa Park (New York) | 1,598.05 mi (2,571.82 km) |
| Rockport to Massillon (Ohio) | 1,246.07 mi (2,005.36 km) |
| Rockport to Mastic (New York) | 1,630.29 mi (2,623.69 km) |
| Rockport to Mastic Beach (New York) | 1,629.54 mi (2,622.49 km) |
| Rockport to Matteson (Illinois) | 1,069.72 mi (1,721.54 km) |
| Rockport to Matthews (North Carolina) | 1,078.61 mi (1,735.86 km) |
