| Grayslake to Lowell (Indiana) | 79.07 mi (127.25 km) |
| Grayslake to Lowell (Massachusetts) | 850.33 mi (1,368.48 km) |
| Grayslake to Lower Burrell (Pennsylvania) | 447.38 mi (719.99 km) |
| Grayslake to Lowes Island (Virginia) | 603.51 mi (971.26 km) |
| Grayslake to Lubbock (Texas) | 965.96 mi (1,554.56 km) |
| Grayslake to Lufkin (Texas) | 845.85 mi (1,361.27 km) |
| Grayslake to Luling (Louisiana) | 869.09 mi (1,398.66 km) |
| Grayslake to Lumberton (North Carolina) | 721.27 mi (1,160.77 km) |
| Grayslake to Lumberton (Texas) | 902.28 mi (1,452.08 km) |
| Grayslake to Lutz (Florida) | 1,029.97 mi (1,657.57 km) |
| Grayslake to Lynbrook (New York) | 751.19 mi (1,208.93 km) |
| Grayslake to Lynchburg (Virginia) | 579.48 mi (932.59 km) |
| Grayslake to Lynden (Washington) | 1,707.99 mi (2,748.75 km) |
| Grayslake to Lyndhurst (Ohio) | 340.95 mi (548.71 km) |
| Grayslake to Lyndon (Kentucky) | 309.65 mi (498.33 km) |
