| Round Lake Beach to Lindon (Utah) | 1,229.87 mi (1,979.29 km) |
| Round Lake Beach to Lindsay (California) | 1,701.70 mi (2,738.62 km) |
| Round Lake Beach to Linganore (Maryland) | 598.62 mi (963.38 km) |
| Round Lake Beach to Lino Lakes (Minnesota) | 315.18 mi (507.23 km) |
| Round Lake Beach to Linthicum (Maryland) | 635.55 mi (1,022.82 km) |
| Round Lake Beach to Linton Hall (Virginia) | 605.05 mi (973.73 km) |
| Round Lake Beach to Lisle (Illinois) | 40.58 mi (65.31 km) |
| Round Lake Beach to Lithia Springs (Georgia) | 622.55 mi (1,001.90 km) |
| Round Lake Beach to Little Canada (Minnesota) | 309.60 mi (498.25 km) |
| Round Lake Beach to Little Chute (Wisconsin) | 132.62 mi (213.43 km) |
| Round Lake Beach to Little Elm (Texas) | 797.10 mi (1,282.80 km) |
| Round Lake Beach to Little Ferry (New Jersey) | 732.21 mi (1,178.39 km) |
| Round Lake Beach to Little Rock (Arkansas) | 576.88 mi (928.40 km) |
| Round Lake Beach to Littleton (Colorado) | 902.54 mi (1,452.49 km) |
| Round Lake Beach to Live Oak (California) | 1,827.96 mi (2,941.81 km) |
