| Healdsburg to Des Plaines (Illinois) | 1,843.74 mi (2,967.21 km) |
| Healdsburg to Desert Hot Springs (California) | 477.23 mi (768.02 km) |
| Healdsburg to DeSoto (Texas) | 1,512.92 mi (2,434.81 km) |
| Healdsburg to Destin (Florida) | 2,133.47 mi (3,433.48 km) |
| Healdsburg to Destrehan (Louisiana) | 1,937.43 mi (3,117.99 km) |
| Healdsburg to Detroit (Michigan) | 2,085.90 mi (3,356.94 km) |
| Healdsburg to Diamond Bar (California) | 425.36 mi (684.55 km) |
| Healdsburg to Diamond Springs (California) | 109.42 mi (176.09 km) |
| Healdsburg to Dickinson (North Dakota) | 1,162.78 mi (1,871.31 km) |
| Healdsburg to Dickinson (Texas) | 1,705.04 mi (2,743.99 km) |
| Healdsburg to Dickson (Tennessee) | 1,945.81 mi (3,131.48 km) |
| Healdsburg to Difficult Run (Virginia) | 2,426.19 mi (3,904.58 km) |
| Healdsburg to Dinuba (California) | 237.92 mi (382.89 km) |
| Healdsburg to Discovery Bay (California) | 84.65 mi (136.23 km) |
| Healdsburg to Dix Hills (New York) | 2,601.44 mi (4,186.61 km) |
