| Round Lake Beach to Dixon (California) | 1,783.88 mi (2,870.88 km) |
| Round Lake Beach to Dixon (Illinois) | 80.65 mi (129.79 km) |
| Round Lake Beach to Dobbs Ferry (New York) | 738.35 mi (1,188.26 km) |
| Round Lake Beach to Doctor Phillips (Florida) | 1,030.78 mi (1,658.88 km) |
| Round Lake Beach to Dodge City (Kansas) | 706.33 mi (1,136.73 km) |
| Round Lake Beach to Dolton (Illinois) | 57.50 mi (92.53 km) |
| Round Lake Beach to Donna (Texas) | 1,255.71 mi (2,020.88 km) |
| Round Lake Beach to Dorado (Puerto Rico) | 2,088.68 mi (3,361.40 km) |
| Round Lake Beach to Doral (Florida) | 1,225.47 mi (1,972.20 km) |
| Round Lake Beach to Doraville (Georgia) | 620.70 mi (998.91 km) |
| Round Lake Beach to Dothan (Alabama) | 784.04 mi (1,261.79 km) |
| Round Lake Beach to Douglas (Arizona) | 1,403.14 mi (2,258.14 km) |
| Round Lake Beach to Douglas (Georgia) | 804.33 mi (1,294.44 km) |
| Round Lake Beach to Douglasville (Georgia) | 624.47 mi (1,004.99 km) |
| Round Lake Beach to Dover (Delaware) | 693.07 mi (1,115.38 km) |
