Home » Napa (CA) Zip Codes: United StatesNapa (CA) Zip Codes: United States American Canyon 94503 Angwin 94508 Calistoga 94515 Deer Park 94576 Napa 94558 94559 94581 Oakville 94562 Pope Valley 94567 Rutherford 94573 Saint Helena 94574 Yountville 94599 Related Postcodes Visalia (CA) Zip Codes: United States Nevada (CA) Zip Codes: United States Kings (CA) Zip Codes: United States Mariposa (CA) Zip Codes: United States Del Norte (CA) Zip Codes: United States Colusa (CA) Zip Codes: United States Merced (CA) Zip Codes: United States Modoc (CA) Zip Codes: United States Orange (CA) Zip Codes: United States Kern (CA) Zip Codes: United States