Sonoma County, located just north of San Francisco, is one of California’s most diverse and respected wine regions, with a winemaking history dating back to the early 1800s. Influenced by Spanish missionaries and later European settlers, the area’s wine industry flourished in the 20th century alongside Napa, though with a more laid-back, grower-driven identity. Its cool coastal climate, varied elevations, and patchwork of soil types make it ideal for a wide range of grape varieties and styles. The region is divided into over 18 AVAs (American Viticultural Areas), each with its own character. Russian River Valley is famed for its cool-climate Pinot Noir and Chardonnay, while Alexander Valley produces powerful, fruit-driven Cabernet Sauvignon. Dry Creek Valley is best known for old-vine Zinfandel, and the Sonoma Coast offers elegant, high-acid wines thanks to maritime influence. With such diversity in terroir, Sonoma supports both artisanal small-lot producers and established estates, often emphasizing sustainability and site expression. Sonoma grows a wide range of grapes, with Chardonnay, Pinot Noir, and Cabernet Sauvignon leading the way, followed by Zinfandel, Merlot, and Sauvignon Blanc. The region’s commitment to sustainable farming, family-owned vineyards, and balanced winemaking has earned it global recognition. Sonoma wines often combine California richness with Old World restraint, offering both approachability and depth for wine lovers at all levels.