| Boone to Dardenne Prairie (Missouri) | 526.92 mi (848.00 km) |
| Boone to Darien (Illinois) | 510.82 mi (822.08 km) |
| Boone to Davenport (Iowa) | 605.67 mi (974.73 km) |
| Boone to Davidson (North Carolina) | 68.91 mi (110.90 km) |
| Boone to Davie (Florida) | 704.78 mi (1,134.24 km) |
| Boone to Davis (California) | 2,188.46 mi (3,521.98 km) |
| Boone to Dayton (Nevada) | 2,066.42 mi (3,325.58 km) |
| Boone to Dayton (Ohio) | 282.54 mi (454.71 km) |
| Boone to Daytona Beach (Florida) | 485.58 mi (781.46 km) |
| Boone to De Pere (Wisconsin) | 660.27 mi (1,062.59 km) |
| Boone to De Witt (New York) | 556.76 mi (896.01 km) |
| Boone to Dearborn (Michigan) | 429.59 mi (691.36 km) |
| Boone to Dearborn Heights (Michigan) | 430.51 mi (692.84 km) |
| Boone to DeBary (Florida) | 506.82 mi (815.65 km) |
| Boone to Decatur (Alabama) | 320.44 mi (515.70 km) |
