| Rio Grande City to Lyndon (Kentucky) | 1,124.99 mi (1,810.50 km) |
| Rio Grande City to Lynn (Massachusetts) | 1,923.73 mi (3,095.94 km) |
| Rio Grande City to Lynn Haven (Florida) | 844.40 mi (1,358.94 km) |
| Rio Grande City to Lynnwood (Washington) | 1,951.43 mi (3,140.52 km) |
| Rio Grande City to Lynwood (California) | 1,266.93 mi (2,038.92 km) |
| Rio Grande City to Lyons (Illinois) | 1,235.69 mi (1,988.66 km) |
| Rio Grande City to Mableton (Georgia) | 993.46 mi (1,598.82 km) |
| Rio Grande City to Macedonia (Ohio) | 1,427.31 mi (2,297.04 km) |
| Rio Grande City to Machesney Park (Illinois) | 1,235.65 mi (1,988.58 km) |
| Rio Grande City to Mack (Ohio) | 1,202.55 mi (1,935.32 km) |
| Rio Grande City to Macomb (Illinois) | 1,079.56 mi (1,737.39 km) |
| Rio Grande City to Macon (Georgia) | 1,009.90 mi (1,625.27 km) |
| Rio Grande City to Madera (California) | 1,443.05 mi (2,322.37 km) |
| Rio Grande City to Madison (Alabama) | 918.61 mi (1,478.36 km) |
| Rio Grande City to Madison (Indiana) | 1,155.95 mi (1,860.32 km) |
