| Rio Grande City to Lindon (Utah) | 1,215.45 mi (1,956.08 km) |
| Rio Grande City to Lindsay (California) | 1,371.69 mi (2,207.52 km) |
| Rio Grande City to Linganore (Maryland) | 1,532.57 mi (2,466.43 km) |
| Rio Grande City to Lino Lakes (Minnesota) | 1,336.43 mi (2,150.77 km) |
| Rio Grande City to Linthicum (Maryland) | 1,555.72 mi (2,503.68 km) |
| Rio Grande City to Linton Hall (Virginia) | 1,497.71 mi (2,410.33 km) |
| Rio Grande City to Lisle (Illinois) | 1,226.87 mi (1,974.46 km) |
| Rio Grande City to Lithia Springs (Georgia) | 988.19 mi (1,590.34 km) |
| Rio Grande City to Little Canada (Minnesota) | 1,326.84 mi (2,135.34 km) |
| Rio Grande City to Little Chute (Wisconsin) | 1,368.96 mi (2,203.13 km) |
| Rio Grande City to Little Elm (Texas) | 483.64 mi (778.35 km) |
| Rio Grande City to Little Ferry (New Jersey) | 1,731.28 mi (2,786.23 km) |
| Rio Grande City to Little Rock (Arkansas) | 692.66 mi (1,114.72 km) |
| Rio Grande City to Littleton (Colorado) | 980.21 mi (1,577.50 km) |
| Rio Grande City to Live Oak (California) | 1,540.32 mi (2,478.90 km) |
