Quick Answer
Napa is the most famous and priciest, Sonoma more varied and relaxed, Paso Robles the best value, and Santa Barbara the easiest to visit without a car. Most Napa estates now require appointments and charge tasting fees.
California wine country is far larger than Napa, and the regions differ more in atmosphere and cost than in quality. Where you go should depend on how formal you want the day to feel.
10 California Wine Regions
1. Napa Valley
The most famous and most expensive. Cabernet Sauvignon country, with polished tasting rooms, appointment-only visits at most estates, and tasting fees to match.
2. Sonoma County
Larger, more varied and considerably more relaxed than Napa next door — Pinot Noir and Chardonnay in the cooler west, Zinfandel inland.
3. Russian River Valley
Fog-cooled Pinot Noir and Chardonnay within Sonoma, with a noticeably less formal atmosphere.
4. Paso Robles
Central coast, Rhône varietals and Zinfandel, with far lower tasting fees and a friendlier welcome for casual visitors.
5. Santa Barbara County
Sta. Rita Hills for Pinot Noir, plus the walkable Funk Zone tasting rooms in the city itself — the easiest region to visit without a car.
6. Anderson Valley
Cool-climate Pinot Noir and some of the best sparkling wine in the state, two hours north of San Francisco and pleasantly remote.
7. Lodi
Old-vine Zinfandel at prices that no longer exist elsewhere in California, inland from the Bay Area.
8. Temecula
Southern California’s accessible region, an hour from San Diego, geared to day visitors.
9. Mendocino
Organic and biodynamic growing well ahead of the rest of the state, in a genuinely rural setting.
10. Sierra Foothills
Gold-rush country with old Zinfandel plantings, small family wineries and almost no crowds.
Never drink and drive. Wine regions are rural and roads are quiet, which makes it tempting — and drink-driving limits are lower in most of Europe and Argentina than in the US. Use a driver, a tour, or a designated non-drinker. Many wineries require tasting appointments booked in advance.
Planning a tasting trip
Book appointments. Most Napa estates and a growing number in Sonoma now require them, and walk-in tasting is increasingly rare. Two or three wineries a day is a realistic maximum if you want to remember any of it.
Expect tasting fees, often waived with a purchase. They are highest in Napa and lowest in Paso Robles, Lodi and the Sierra Foothills — which is a good reason to consider those regions if you are tasting over several days.
Harvest (crush) runs roughly August to October and is the most atmospheric time to visit, though also the busiest and priciest. If you want to taste without driving, Santa Barbara’s Funk Zone and downtown Sonoma and Healdsburg all have walkable tasting rooms clustered together.
Frequently Asked Questions
Which California wine region is best for a first visit?
Sonoma — as good as Napa, more varied, more relaxed and less expensive.
Where is the best value?
Paso Robles, Lodi and the Sierra Foothills, with lower tasting fees and smaller crowds.
Do you need appointments?
In Napa, almost always. Increasingly in Sonoma too. Book ahead.