| Gourock to Dardenne Prairie (Missouri) | 3,913.87 mi (6,298.76 km) |
| Gourock to Darien (Illinois) | 3,664.01 mi (5,896.65 km) |
| Gourock to Davenport (Iowa) | 3,766.96 mi (6,062.34 km) |
| Gourock to Davidson (North Carolina) | 3,714.28 mi (5,977.55 km) |
| Gourock to Davie (Florida) | 4,189.26 mi (6,741.97 km) |
| Gourock to Davis (California) | 4,936.37 mi (7,944.32 km) |
| Gourock to Dayton (Nevada) | 4,832.91 mi (7,777.81 km) |
| Gourock to Dayton (Ohio) | 3,624.01 mi (5,832.28 km) |
| Gourock to Daytona Beach (Florida) | 4,052.93 mi (6,522.57 km) |
| Gourock to De Pere (Wisconsin) | 3,535.75 mi (5,690.24 km) |
| Gourock to De Witt (New York) | 3,166.13 mi (5,095.40 km) |
| Gourock to Dearborn (Michigan) | 3,463.57 mi (5,574.08 km) |
| Gourock to Dearborn Heights (Michigan) | 3,465.72 mi (5,577.54 km) |
| Gourock to DeBary (Florida) | 4,078.56 mi (6,563.81 km) |
| Gourock to Decatur (Alabama) | 3,993.18 mi (6,426.40 km) |
