| Katy to Dixon (California) | 1,595.52 mi (2,567.75 km) |
| Katy to Dixon (Illinois) | 905.06 mi (1,456.55 km) |
| Katy to Dobbs Ferry (New York) | 1,453.57 mi (2,339.30 km) |
| Katy to Doctor Phillips (Florida) | 870.19 mi (1,400.44 km) |
| Katy to Dodge City (Kansas) | 600.64 mi (966.64 km) |
| Katy to Dolton (Illinois) | 938.35 mi (1,510.13 km) |
| Katy to Donna (Texas) | 285.89 mi (460.09 km) |
| Katy to Dorado (Puerto Rico) | 2,013.91 mi (3,241.08 km) |
| Katy to Doral (Florida) | 984.15 mi (1,583.83 km) |
| Katy to Doraville (Georgia) | 735.32 mi (1,183.38 km) |
| Katy to Dothan (Alabama) | 628.45 mi (1,011.40 km) |
| Katy to Douglas (Arizona) | 821.84 mi (1,322.63 km) |
| Katy to Douglas (Georgia) | 780.18 mi (1,255.58 km) |
| Katy to Douglasville (Georgia) | 707.92 mi (1,139.28 km) |
| Katy to Dover (Delaware) | 1,321.49 mi (2,126.73 km) |
