| Katy to Dover (New Hampshire) | 1,656.45 mi (2,665.81 km) |
| Katy to Dover (New Jersey) | 1,417.32 mi (2,280.96 km) |
| Katy to Dover (Ohio) | 1,096.44 mi (1,764.55 km) |
| Katy to Downers Grove (Illinois) | 937.03 mi (1,508.00 km) |
| Katy to Downey (California) | 1,336.48 mi (2,150.86 km) |
| Katy to Dranesville (Virginia) | 1,226.43 mi (1,973.74 km) |
| Katy to Draper (Utah) | 1,165.82 mi (1,876.20 km) |
| Katy to Drexel Heights (Arizona) | 915.01 mi (1,472.57 km) |
| Katy to Drexel Hill (Pennsylvania) | 1,354.18 mi (2,179.34 km) |
| Katy to Duarte (California) | 1,327.99 mi (2,137.19 km) |
| Katy to Dublin (California) | 1,587.69 mi (2,555.15 km) |
| Katy to Dublin (Georgia) | 785.77 mi (1,264.58 km) |
| Katy to Dublin (Ohio) | 1,010.35 mi (1,626.01 km) |
| Katy to Dubuque (Iowa) | 923.11 mi (1,485.60 km) |
| Katy to Duluth (Georgia) | 744.18 mi (1,197.64 km) |
