Web Winery
Since 1995

California wine regions

11 regions, 41 wineries: 20 open, 2 changed hands, 9 no longer trading, 10 not confirmed.

California wine regionsMap of California marking 11 wine regions, with the number of wineries in each. The same list follows on the page. Anderson Valley 1Russian River Valley 2Napa Valley 2Sierra Foothills 2Lodi 1Livermore Valley 1Santa Cruz Mountains 26Santa Clara Valley 3Paso Robles 1Central Coast 1Ventura County 1
Number of wineries in each region.

About the regions

Most regions here are American Viticultural Areas: wine regions whose boundaries are set by federal rule. Each region's page gives the date its appellation was recognized1.

Start with the Santa Cruz Mountains, which has the most wineries; the original Web Winery grew up there in the 1990s. The other regions run from Mendocino County in the north to Ventura County in the south2.

Sources

  1. eCFR, 27 CFR part 9, American Viticultural Areas , checked Nov 15, 2026.
  2. The Santa Cruz Mountains section of the Web Winery archive