| Round Lake Beach to Darby (Pennsylvania) | 687.52 mi (1,106.46 km) |
| Round Lake Beach to Dardenne Prairie (Missouri) | 286.33 mi (460.80 km) |
| Round Lake Beach to Darien (Illinois) | 44.12 mi (71.00 km) |
| Round Lake Beach to Davenport (Iowa) | 141.58 mi (227.84 km) |
| Round Lake Beach to Davidson (North Carolina) | 615.18 mi (990.04 km) |
| Round Lake Beach to Davie (Florida) | 1,209.69 mi (1,946.80 km) |
| Round Lake Beach to Davis (California) | 1,776.90 mi (2,859.64 km) |
| Round Lake Beach to Dayton (Nevada) | 1,650.73 mi (2,656.60 km) |
| Round Lake Beach to Dayton (Ohio) | 270.30 mi (435.00 km) |
| Round Lake Beach to Daytona Beach (Florida) | 990.25 mi (1,593.66 km) |
| Round Lake Beach to De Pere (Wisconsin) | 141.76 mi (228.14 km) |
| Round Lake Beach to De Witt (New York) | 610.38 mi (982.31 km) |
| Round Lake Beach to Dearborn (Michigan) | 248.60 mi (400.09 km) |
| Round Lake Beach to Dearborn Heights (Michigan) | 245.33 mi (394.82 km) |
| Round Lake Beach to DeBary (Florida) | 1,005.97 mi (1,618.95 km) |
