Napa Valley
in Napa County, California
Napa Valley is today one of America’s most renowned and visited wine-growing regions. Formerly it was a silver-rush valley of the 19th century.
Napa Valley is in Napa County which is located north of San Pablo Bay in the northern portion of the U.S. state of California. As of the 2010 census, the population was 136,484. The county seat is the City of Napa.