| Napa to Hutchinson (Kansas) | 1,321.02 mi (2,125.98 km) |
| Napa to Hutchinson (Minnesota) | 1,504.43 mi (2,421.15 km) |
| Napa to Hutto (Texas) | 1,503.70 mi (2,419.97 km) |
| Napa to Hyattsville (Maryland) | 2,422.19 mi (3,898.14 km) |
| Napa to Hybla Valley (Virginia) | 2,419.03 mi (3,893.05 km) |
| Napa to Idaho Falls (Idaho) | 644.24 mi (1,036.80 km) |
| Napa to Idylwood (Virginia) | 2,410.26 mi (3,878.93 km) |
| Napa to Ilchester (Maryland) | 2,427.78 mi (3,907.14 km) |
| Napa to Immokalee (Florida) | 2,499.47 mi (4,022.50 km) |
| Napa to Imperial (California) | 533.79 mi (859.05 km) |
| Napa to Imperial Beach (California) | 491.51 mi (791.01 km) |
| Napa to Independence (Kentucky) | 2,023.58 mi (3,256.63 km) |
| Napa to Independence (Missouri) | 1,502.38 mi (2,417.85 km) |
| Napa to Indian Trail (North Carolina) | 2,299.40 mi (3,700.52 km) |
| Napa to Indiana (Pennsylvania) | 2,284.12 mi (3,675.94 km) |
