| Healdsburg to Dixon (California) | 57.51 mi (92.55 km) |
| Healdsburg to Dixon (Illinois) | 1,763.79 mi (2,838.55 km) |
| Healdsburg to Dobbs Ferry (New York) | 2,571.09 mi (4,137.77 km) |
| Healdsburg to Doctor Phillips (Florida) | 2,461.61 mi (3,961.59 km) |
| Healdsburg to Dodge City (Kansas) | 1,238.89 mi (1,993.81 km) |
| Healdsburg to Dolton (Illinois) | 1,861.69 mi (2,996.10 km) |
| Healdsburg to Donna (Texas) | 1,676.47 mi (2,698.02 km) |
| Healdsburg to Dorado (Puerto Rico) | 3,642.56 mi (5,862.14 km) |
| Healdsburg to Doral (Florida) | 2,610.95 mi (4,201.92 km) |
| Healdsburg to Doraville (Georgia) | 2,158.55 mi (3,473.84 km) |
| Healdsburg to Dothan (Alabama) | 2,166.53 mi (3,486.69 km) |
| Healdsburg to Douglas (Arizona) | 904.43 mi (1,455.54 km) |
| Healdsburg to Douglas (Georgia) | 2,296.68 mi (3,696.15 km) |
| Healdsburg to Douglasville (Georgia) | 2,139.15 mi (3,442.63 km) |
| Healdsburg to Dover (Delaware) | 2,516.68 mi (4,050.20 km) |
