| San Marcos to Lovington (New Mexico) | 801.71 mi (1,290.23 km) |
| San Marcos to Lowell (Indiana) | 1,721.48 mi (2,770.46 km) |
| San Marcos to Lowell (Massachusetts) | 2,551.95 mi (4,106.97 km) |
| San Marcos to Lower Burrell (Pennsylvania) | 2,116.82 mi (3,406.69 km) |
| San Marcos to Lowes Island (Virginia) | 2,242.31 mi (3,608.65 km) |
| San Marcos to Lubbock (Texas) | 881.96 mi (1,419.38 km) |
| San Marcos to Lufkin (Texas) | 1,315.41 mi (2,116.95 km) |
| San Marcos to Luling (Louisiana) | 1,591.15 mi (2,560.70 km) |
| San Marcos to Lumberton (North Carolina) | 2,177.96 mi (3,505.09 km) |
| San Marcos to Lumberton (Texas) | 1,361.98 mi (2,191.89 km) |
| San Marcos to Lutz (Florida) | 2,083.51 mi (3,353.09 km) |
| San Marcos to Lynbrook (New York) | 2,433.52 mi (3,916.37 km) |
| San Marcos to Lynchburg (Virginia) | 2,148.34 mi (3,457.41 km) |
| San Marcos to Lynden (Washington) | 1,126.12 mi (1,812.32 km) |
| San Marcos to Lyndhurst (Ohio) | 2,028.16 mi (3,264.00 km) |
