Oakville is a census-designated place (CDP) in Napa County, California, United States. Oakville started life in the 1860s as a water stop for the steam train owned by The Napa Valley Railroad Company. The railroad, founded by early California pioneer Samuel Brannan in 1864 shuttled tourists between ferry boats that docked in Vallejo to the resort town of Calistoga. The village gained its name from the dense groves of dark green valley oaks of the area. The population was 71 at the 2010 census.
The local economy is based on wine production and Oakville was formally declared a Napa appellation in 1993. There are currently 24 wineries and over 5,000 acres of vineyard located within the boundary of the Oakville AVA, among them are the Robert Mondavi Winery, the Opus One Winery, and wineries of Heitz Wine Cellars and Screaming Eagle.
Modern day tourists traveling on State Route 29 often include a stop at Oakville Grocery, one of the area’s few non-winery business in order to purchase picnic supplies. The Napa Valley Wine Train runs through Oakville on the same route that the original steam train ran on over in the 19th century.
Oakville’s zip code is 94562, and its area code 707.