| Healdsburg to Delaware (Ohio) | 2,108.05 mi (3,392.58 km) |
| Healdsburg to Delhi (California) | 140.39 mi (225.93 km) |
| Healdsburg to Delray Beach (Florida) | 2,603.03 mi (4,189.17 km) |
| Healdsburg to Deltona (Florida) | 2,462.09 mi (3,962.36 km) |
| Healdsburg to Deming (New Mexico) | 955.74 mi (1,538.11 km) |
| Healdsburg to Denison (Texas) | 1,497.95 mi (2,410.72 km) |
| Healdsburg to Dent (Ohio) | 2,039.10 mi (3,281.61 km) |
| Healdsburg to Denton (Texas) | 1,481.57 mi (2,384.36 km) |
| Healdsburg to Dentsville (South Carolina) | 2,333.04 mi (3,754.66 km) |
| Healdsburg to Denver (Colorado) | 964.90 mi (1,552.85 km) |
| Healdsburg to Depew (New York) | 2,303.13 mi (3,706.52 km) |
| Healdsburg to Derby (Connecticut) | 2,606.16 mi (4,194.20 km) |
| Healdsburg to Derby (Kansas) | 1,390.09 mi (2,237.13 km) |
| Healdsburg to Des Moines (Iowa) | 1,552.03 mi (2,497.75 km) |
| Healdsburg to Des Moines (Washington) | 606.51 mi (976.08 km) |
