| Napa to Dixon (California) | 27.77 mi (44.70 km) |
| Napa to Dixon (Illinois) | 1,741.84 mi (2,803.22 km) |
| Napa to Dobbs Ferry (New York) | 2,549.98 mi (4,103.80 km) |
| Napa to Doctor Phillips (Florida) | 2,429.65 mi (3,910.14 km) |
| Napa to Dodge City (Kansas) | 1,210.36 mi (1,947.89 km) |
| Napa to Dolton (Illinois) | 1,839.60 mi (2,960.56 km) |
| Napa to Donna (Texas) | 1,639.51 mi (2,638.54 km) |
| Napa to Dorado (Puerto Rico) | 3,609.95 mi (5,809.66 km) |
| Napa to Doral (Florida) | 2,577.94 mi (4,148.80 km) |
| Napa to Doraville (Georgia) | 2,129.47 mi (3,427.05 km) |
| Napa to Dothan (Alabama) | 2,135.26 mi (3,436.36 km) |
| Napa to Douglas (Arizona) | 866.80 mi (1,394.97 km) |
| Napa to Douglas (Georgia) | 2,266.22 mi (3,647.12 km) |
| Napa to Douglasville (Georgia) | 2,109.84 mi (3,395.46 km) |
| Napa to Dover (Delaware) | 2,493.68 mi (4,013.20 km) |
