| Napa to San Luis Obispo (California) | 228.03 mi (366.98 km) |
| Napa to San Marcos (California) | 458.02 mi (737.11 km) |
| Napa to San Marcos (Texas) | 1,505.03 mi (2,422.12 km) |
| Napa to San Marino (California) | 371.01 mi (597.09 km) |
| Napa to San Mateo (California) | 51.50 mi (82.88 km) |
| Napa to San Pablo (California) | 23.23 mi (37.38 km) |
| Napa to San Rafael (California) | 24.38 mi (39.23 km) |
| Napa to San Ramon (California) | 41.96 mi (67.52 km) |
| Napa to San Tan Valley (Arizona) | 697.70 mi (1,122.84 km) |
| Napa to Sand Springs (Oklahoma) | 1,442.98 mi (2,322.25 km) |
| Napa to Sandusky (Ohio) | 2,092.71 mi (3,367.89 km) |
| Napa to Sandy (Oregon) | 490.65 mi (789.63 km) |
| Napa to Sandy (Utah) | 578.97 mi (931.77 km) |
| Napa to Sandy Springs (Georgia) | 2,123.43 mi (3,417.33 km) |
| Napa to Sanford (Florida) | 2,430.67 mi (3,911.78 km) |
