General locations of California's wine regions
California has over 427,000 acres (1,730 km2) planted under vines mostly located in a stretch of land covering over 700 miles (1,100 km) from Mendocino County to the southwestern tip of Riverside County. There are over 107 American Viticultural Areas (AVAs), including the well-known Napa, Russian River Valley, Rutherford and Sonoma Valley AVAs. The Central Valley is California's largest wine region stretching for 300 miles (480 km) from the Sacramento Valley south to the San Joaquin Valley. This one region produces nearly 75% of all California wine grapes and includes many of California's bulk, box and jug wine producers like Gallo, Franzia and Bronco Wine Company.
California is often divided into four main regions:
- North Coast – Includes most of North Coast, California, north of San Francisco Bay. The large North Coast AVA covers most of the region. Notable wine regions include Napa Valley and Sonoma County and the smaller sub AVAs within them. Mendocino and Lake County are also part of this region.
- Central Coast – Includes most of the Central Coast of California and the area south and west of San Francisco Bay down to Santa Barbara County. The large Central Coast AVA covers the region. Notable wine regions in this area include Santa Clara Valley AVA, San Francisco Bay AVA, Santa Cruz Mountains AVA, San Lucas AVA, Paso Robles AVA, Santa Maria Valley AVA, Santa Ynez Valley AVA, Edna Valley AVA, Arroyo Grande Valley AVA, Livermore Valley AVA, Cienega Valley AVA and San Benito AVA.
- South Coast – Includes portion of Southern California, namely the coastal regions south of Los Angeles down to the border with Mexico. Notable wine regions in this area include Temecula Valley AVA, Antelope Valley/Leona Valley AVA, San Pasqual Valley AVA and Ramona Valley AVA. Also, wineries in the San Luis Rey Valley are in the process of creating a new AVA specific to that area.
- Central Valley – Includes California's Central Valley and the Sierra Foothills AVA. Notable wine regions in this area include the Lodi AVA.