| San Marcos to Los Alamitos (California) | 68.51 mi (110.26 km) |
| San Marcos to Los Alamos (New Mexico) | 648.08 mi (1,042.98 km) |
| San Marcos to Los Altos (California) | 403.22 mi (648.92 km) |
| San Marcos to Los Angeles (California) | 98.00 mi (157.72 km) |
| San Marcos to Los Banos (California) | 341.42 mi (549.46 km) |
| San Marcos to Los Gatos (California) | 391.02 mi (629.29 km) |
| San Marcos to Los Lunas (New Mexico) | 606.43 mi (975.95 km) |
| San Marcos to Los Osos (California) | 256.86 mi (413.37 km) |
| San Marcos to Loudoun Valley Estates (Virginia) | 2,234.29 mi (3,595.73 km) |
| San Marcos to Louisville (Colorado) | 816.67 mi (1,314.30 km) |
| San Marcos to Louisville (Kentucky) | 1,794.79 mi (2,888.44 km) |
| San Marcos to Lovejoy (Georgia) | 1,889.78 mi (3,041.30 km) |
| San Marcos to Loveland (Colorado) | 836.79 mi (1,346.68 km) |
| San Marcos to Loveland (Ohio) | 1,871.70 mi (3,012.21 km) |
| San Marcos to Loves Park (Illinois) | 1,655.98 mi (2,665.04 km) |
