| Round Lake Beach to Duluth (Minnesota) | 363.43 mi (584.88 km) |
| Round Lake Beach to Dumas (Texas) | 868.19 mi (1,397.22 km) |
| Round Lake Beach to Dumont (New Jersey) | 733.09 mi (1,179.79 km) |
| Round Lake Beach to Duncan (Oklahoma) | 758.42 mi (1,220.56 km) |
| Round Lake Beach to Duncanville (Texas) | 827.52 mi (1,331.77 km) |
| Round Lake Beach to Dundalk (Maryland) | 642.11 mi (1,033.38 km) |
| Round Lake Beach to Dunedin (Florida) | 1,034.74 mi (1,665.26 km) |
| Round Lake Beach to Dunkirk (New York) | 446.03 mi (717.81 km) |
| Round Lake Beach to Dunmore (Pennsylvania) | 644.38 mi (1,037.03 km) |
| Round Lake Beach to Dunwoody (Georgia) | 617.69 mi (994.08 km) |
| Round Lake Beach to Durango (Colorado) | 1,105.29 mi (1,778.79 km) |
| Round Lake Beach to Durant (Oklahoma) | 733.57 mi (1,180.57 km) |
| Round Lake Beach to Durham (North Carolina) | 660.50 mi (1,062.97 km) |
| Round Lake Beach to Dyer (Indiana) | 67.63 mi (108.83 km) |
| Round Lake Beach to Dyersburg (Tennessee) | 443.00 mi (712.93 km) |
