| Rockport to Marrero (Louisiana) | 439.80 mi (707.79 km) |
| Rockport to Marshall (Minnesota) | 1,136.71 mi (1,829.35 km) |
| Rockport to Marshall (Missouri) | 797.48 mi (1,283.42 km) |
| Rockport to Marshall (Texas) | 351.19 mi (565.19 km) |
| Rockport to Marshalltown (Iowa) | 995.61 mi (1,602.27 km) |
| Rockport to Marshfield (Wisconsin) | 1,210.57 mi (1,948.22 km) |
| Rockport to Martha Lake (Washington) | 1,920.94 mi (3,091.46 km) |
| Rockport to Martin (Tennessee) | 748.15 mi (1,204.03 km) |
| Rockport to Martinez (California) | 1,599.27 mi (2,573.78 km) |
| Rockport to Martinez (Georgia) | 965.24 mi (1,553.40 km) |
| Rockport to Martinsburg (West Virginia) | 1,346.95 mi (2,167.71 km) |
| Rockport to Martinsville (Indiana) | 994.78 mi (1,600.94 km) |
| Rockport to Martinsville (New Jersey) | 1,542.82 mi (2,482.94 km) |
| Rockport to Martinsville (Virginia) | 1,166.14 mi (1,876.72 km) |
| Rockport to Maryland City (Maryland) | 1,390.16 mi (2,237.24 km) |
