| Highlands Ranch to Dover (New Hampshire) | 1,772.96 mi (2,853.31 km) |
| Highlands Ranch to Dover (New Jersey) | 1,599.17 mi (2,573.62 km) |
| Highlands Ranch to Dover (Ohio) | 1,240.84 mi (1,996.94 km) |
| Highlands Ranch to Downers Grove (Illinois) | 900.47 mi (1,449.17 km) |
| Highlands Ranch to Downey (California) | 823.96 mi (1,326.03 km) |
| Highlands Ranch to Dranesville (Virginia) | 1,471.11 mi (2,367.52 km) |
| Highlands Ranch to Draper (Utah) | 370.37 mi (596.05 km) |
| Highlands Ranch to Drexel Heights (Arizona) | 613.66 mi (987.59 km) |
| Highlands Ranch to Drexel Hill (Pennsylvania) | 1,569.00 mi (2,525.07 km) |
| Highlands Ranch to Duarte (California) | 807.08 mi (1,298.88 km) |
| Highlands Ranch to Dublin (California) | 920.84 mi (1,481.95 km) |
| Highlands Ranch to Dublin (Georgia) | 1,318.92 mi (2,122.60 km) |
| Highlands Ranch to Dublin (Ohio) | 1,155.88 mi (1,860.20 km) |
| Highlands Ranch to Dubuque (Iowa) | 770.08 mi (1,239.32 km) |
| Highlands Ranch to Duluth (Georgia) | 1,210.88 mi (1,948.72 km) |
