| Rio Rico to Marrero (Louisiana) | 1,243.44 mi (2,001.12 km) |
| Rio Rico to Marshall (Minnesota) | 1,215.10 mi (1,955.52 km) |
| Rio Rico to Marshall (Missouri) | 1,129.88 mi (1,818.37 km) |
| Rio Rico to Marshall (Texas) | 976.32 mi (1,571.23 km) |
| Rio Rico to Marshalltown (Iowa) | 1,233.41 mi (1,984.98 km) |
| Rio Rico to Marshfield (Wisconsin) | 1,444.94 mi (2,325.40 km) |
| Rio Rico to Martha Lake (Washington) | 1,275.21 mi (2,052.25 km) |
| Rio Rico to Martin (Tennessee) | 1,309.37 mi (2,107.23 km) |
| Rio Rico to Martinez (California) | 774.28 mi (1,246.08 km) |
| Rio Rico to Martinez (Georgia) | 1,683.73 mi (2,709.70 km) |
| Rio Rico to Martinsburg (West Virginia) | 1,925.04 mi (3,098.05 km) |
| Rio Rico to Martinsville (Indiana) | 1,480.52 mi (2,382.67 km) |
| Rio Rico to Martinsville (New Jersey) | 2,112.29 mi (3,399.40 km) |
| Rio Rico to Martinsville (Virginia) | 1,808.39 mi (2,910.32 km) |
| Rio Rico to Maryland City (Maryland) | 1,985.10 mi (3,194.71 km) |
