California is home to some of the world’s most renowned wine-growing regions. From the cool-climate vineyards of the Russian River Valley in Sonoma County to the warm-climate vineyards of Paso Robles in San Luis Obispo County, California’s diverse terroir and microclimates produce a wide range of wines. To help you explore the state’s major wine-growing regions, here’s an overview of the key grape varieties, wine styles, and appellations in each region.

Napa Valley

Napa Valley is perhaps the most famous of California’s wine-growing regions, and it’s home to some of the world’s most sought-after wines. The region is known for its Cabernet Sauvignon, which is one of the most widely planted grape varieties in the region. Other key grape varieties include Chardonnay, Merlot, Zinfandel, and Sauvignon Blanc. Wine styles in Napa Valley range from full-bodied and complex reds to crisp and refreshing whites. The region’s most famous appellations include Napa Valley, Stags Leap District, Rutherford, Oakville, and Carneros.

Sonoma County

Sonoma County is home to several distinct wine-growing regions, including the Russian River Valley, Dry Creek Valley, Alexander Valley, and the Sonoma Coast. The region is known for its Chardonnay and Pinot Noir, which are two of the most widely planted grape varieties in the area. Other key grape varieties in Sonoma County include Zinfandel, Cabernet Sauvignon, Sauvignon Blanc, and Syrah. Wine styles in the region range from light and fruity whites to full-bodied and complex reds. The region’s most famous appellations include the Russian River Valley, Dry Creek Valley, Alexander Valley, Sonoma Coast, and Sonoma Valley.

Central Coast

The Central Coast is home to several distinct wine-growing regions, including Paso Robles, Santa Barbara County, Monterey County, and San Luis Obispo County. The region is known for its Rhône-style wines, which are produced from a variety of grape varieties, including Syrah, Grenache, Mourvèdre, and Viognier. Other key grape varieties in the Central Coast include Chardonnay, Pinot Noir, Sauvignon Blanc, and Zinfandel. Wine styles in the region range from light and crisp whites to bold and full-bodied reds. The region’s most famous appellations include Paso Robles, Santa Barbara County, Monterey County, and San Luis Obispo County.

Sierra Foothills

The Sierra Foothills is home to several distinct wine-growing regions, including El Dorado, Amador County, and Calaveras County. The region is known for its Zinfandel, which is one of the most widely planted grape varieties in the area. Other key grape varieties in the Sierra Foothills include Syrah, Cabernet Sauvignon, Chardonnay, and Sauvignon Blanc. Wine styles in the region range from light and fruity whites to full-bodied and complex reds. The region’s most famous appellations include El Dorado, Amador County, and Calaveras County.

Whether you’re looking for a full-bodied Cabernet Sauvignon from Napa Valley or a crisp and refreshing Chardonnay from Sonoma County, California’s diverse wine-growing regions have something for everyone. With its wide range of grape varieties, wine styles, and appellations, California is a great place to explore and discover new wines.