Napa County – Saint Helena – 94574 – CA – 5/6
Napa County – Saint Helena – 94574 – CA – 5/6
Cities: St. Helena, CA (3.87%), Deer Park, CA (3.48%)
County: Napa County, CA
Estimated zip code population in 2011: 9,298
Zip code population in 2010: 8,742
Zip code population in 2000: 9,415