article: Sonoma County, California
links: North American Numbering Plan Napa County, California Geographic Names Information System Sonoma, California Lake County, California Municipal corporation U.S. Santa Rosa, California Pacific Time Zone Pacific Daylight Time 2020 United States Census Federal Information Processing Standard Council–manager government San Francisco Bay Mendocino County, California Petaluma, California Marin County, California Jenner, California County seat U.S. state California Sonoma Coast State Beach Sonoma County Transit San Francisco Bay Area County (United States)