| Highlands Ranch to Duluth (Minnesota) | 815.60 mi (1,312.58 km) |
| Highlands Ranch to Dumas (Texas) | 302.75 mi (487.23 km) |
| Highlands Ranch to Dumont (New Jersey) | 1,628.11 mi (2,620.19 km) |
| Highlands Ranch to Duncan (Oklahoma) | 519.82 mi (836.57 km) |
| Highlands Ranch to Duncanville (Texas) | 654.73 mi (1,053.68 km) |
| Highlands Ranch to Dundalk (Maryland) | 1,513.97 mi (2,436.50 km) |
| Highlands Ranch to Dunedin (Florida) | 1,495.35 mi (2,406.53 km) |
| Highlands Ranch to Dunkirk (New York) | 1,346.76 mi (2,167.40 km) |
| Highlands Ranch to Dunmore (Pennsylvania) | 1,541.23 mi (2,480.38 km) |
| Highlands Ranch to Dunwoody (Georgia) | 1,204.21 mi (1,937.99 km) |
| Highlands Ranch to Durango (Colorado) | 222.48 mi (358.05 km) |
| Highlands Ranch to Durant (Oklahoma) | 609.68 mi (981.18 km) |
| Highlands Ranch to Durham (North Carolina) | 1,439.85 mi (2,317.22 km) |
| Highlands Ranch to Dyer (Indiana) | 925.43 mi (1,489.33 km) |
| Highlands Ranch to Dyersburg (Tennessee) | 883.64 mi (1,422.09 km) |
