| Rio Grande City to Leland (North Carolina) | 1,349.79 mi (2,172.27 km) |
| Rio Grande City to Lemay (Missouri) | 974.91 mi (1,568.97 km) |
| Rio Grande City to Lemon Grove (California) | 1,177.27 mi (1,894.63 km) |
| Rio Grande City to Lemon Hill (California) | 1,556.91 mi (2,505.60 km) |
| Rio Grande City to Lemont (Illinois) | 1,222.80 mi (1,967.90 km) |
| Rio Grande City to Lemoore (California) | 1,410.28 mi (2,269.62 km) |
| Rio Grande City to Lenexa (Kansas) | 899.82 mi (1,448.12 km) |
| Rio Grande City to Lennox (California) | 1,275.75 mi (2,053.12 km) |
| Rio Grande City to Lenoir (North Carolina) | 1,213.42 mi (1,952.82 km) |
| Rio Grande City to Leominster (Massachusetts) | 1,888.48 mi (3,039.22 km) |
| Rio Grande City to Leon Valley (Texas) | 215.57 mi (346.93 km) |
| Rio Grande City to Levelland (Texas) | 540.63 mi (870.06 km) |
| Rio Grande City to Levittown (New York) | 1,751.96 mi (2,819.51 km) |
| Rio Grande City to Levittown (Pennsylvania) | 1,671.24 mi (2,689.61 km) |
| Rio Grande City to Lewisburg (Tennessee) | 947.98 mi (1,525.62 km) |
