| Napa to Bay City (Michigan) | 2,019.27 mi (3,249.70 km) |
| Napa to Bay City (Texas) | 1,638.75 mi (2,637.32 km) |
| Napa to Bay Point (California) | 25.97 mi (41.79 km) |
| Napa to Bay Shore (New York) | 2,585.85 mi (4,161.52 km) |
| Napa to Bay Village (Ohio) | 2,131.93 mi (3,431.01 km) |
| Napa to Bayamón (Puerto Rico) | 3,619.23 mi (5,824.58 km) |
| Napa to Bayonet Point (Florida) | 2,369.05 mi (3,812.62 km) |
| Napa to Bayonne (New Jersey) | 2,542.50 mi (4,091.75 km) |
| Napa to Bayou Blue (Louisiana) | 1,897.82 mi (3,054.25 km) |
| Napa to Bayou Cane (Louisiana) | 1,893.96 mi (3,048.04 km) |
| Napa to Bayshore Gardens (Florida) | 2,403.48 mi (3,868.02 km) |
| Napa to Baytown (Texas) | 1,665.05 mi (2,679.63 km) |
| Napa to Beach Park (Illinois) | 1,822.84 mi (2,933.58 km) |
| Napa to Beachwood (New Jersey) | 2,549.45 mi (4,102.95 km) |
| Napa to Beachwood (Ohio) | 2,154.00 mi (3,466.53 km) |
