| Katy to Darby (Pennsylvania) | 1,355.41 mi (2,181.32 km) |
| Katy to Dardenne Prairie (Missouri) | 684.28 mi (1,101.24 km) |
| Katy to Darien (Illinois) | 934.95 mi (1,504.66 km) |
| Katy to Davenport (Iowa) | 863.87 mi (1,390.26 km) |
| Katy to Davidson (North Carolina) | 956.48 mi (1,539.30 km) |
| Katy to Davie (Florida) | 982.23 mi (1,580.74 km) |
| Katy to Davis (California) | 1,592.77 mi (2,563.31 km) |
| Katy to Dayton (Nevada) | 1,494.72 mi (2,405.52 km) |
| Katy to Dayton (Ohio) | 953.49 mi (1,534.50 km) |
| Katy to Daytona Beach (Florida) | 886.61 mi (1,426.86 km) |
| Katy to De Pere (Wisconsin) | 1,096.85 mi (1,765.21 km) |
| Katy to De Witt (New York) | 1,422.97 mi (2,290.05 km) |
| Katy to Dearborn (Michigan) | 1,113.50 mi (1,792.01 km) |
| Katy to Dearborn Heights (Michigan) | 1,111.46 mi (1,788.73 km) |
| Katy to DeBary (Florida) | 875.73 mi (1,409.35 km) |
