transport: Sonoma County, California

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Sonoma County ( sə-NOH-mə) is a northern county in the U.S. state of California. As of the 2020 United States census, its population was 488,863. The county seat and the largest city in the county is Santa Rosa. Sonoma County comprises the Santa Rosa–Petaluma metropolitan statistical area, which was part of the San Jose–San Francisco–Oakland, CA combined statistical area until 2023. It is the northernmost county in the nine-county San Francisco Bay Area region. In California's Wine Country region, which also includes Napa, Mendocino, and Lake counties, Sonoma County is the largest producer. It has nineteen approved American Viticultural Areas and more than 350 wineries. The voters have twic…

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Santa Rosa (Spanish for "Saint Rose") is a city in and the county seat of Sonoma County, United States, in the North Bay region of the Bay Area in California. Its population as of the 2020 census was 178,127. It is the largest city in California's Wine Country and Redwood Coast. It is the fifth most populous city in the Bay Area after San Jose, San Francisco, Oakland, and Fremont; and the 27th-most populous city in California.

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Napa County ( ) is a county north of San Pablo Bay located in the northern portion of the U.S. state of California. As of the 2020 United States census, the population was 138,019. The county seat is the City of Napa. Napa County was one of the original counties of California, created in 1850 at the time of statehood. Parts of the county's territory were given to Lake County in 1861. Napa County comprises the Napa, CA metropolitan statistical area, which is also included in the San Jose-San Francisco-Oakland, CA combined statistical area. It is one of four North Bay counties. Napa County, once the producer of many different crops, is known today for its regional wine industry. Napa County r…

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The U.S. state of California is divided into 58 counties. The state was first divided into 27 counties on February 18, 1850. These were further sub-divided to form sixteen additional counties by 1860. Another fourteen counties were formed through further subdivision from 1861 to 1893. The most recent county to form was Imperial County, in 1907. California is home to San Bernardino County, the largest county in the contiguous United States, as well as Los Angeles County, the most populous county in the United States. The counties of California are local arms of the State of California, described by the Supreme Court of California as agents ("the county is merely a political subdivision of st…

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Charles M. Schulz–Sonoma County Airport (IATA: STS, ICAO: KSTS, FAA LID: STS) is a domestic airport located 7 miles (11 km) northwest of downtown Santa Rosa, California, in Sonoma County, California, United States. The airport is named after Charles M. Schulz, the famed cartoonist of the Peanuts comic strip, who lived in Santa Rosa for more than 30 years. The airport's logo features Snoopy in World War I flying-ace attire atop his doghouse.

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Geology of Santa Rosa Hills, eastern Purisima Hills district, Santa Barbara County, California

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Hydrologic and geochemical characterization of the Santa Rosa Plain watershed, Sonoma County, California

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Statement on ground-water conditions in Santa Rosa, Petaluma, and Sonoma Valleys, Sonoma County, California

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Geology and ground water in the Santa Rosa and Petaluma Valley areas, Sonoma County, California

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Santa Rosa Junior College (SRJC) is a public community college in Santa Rosa, California with an additional campus in Petaluma and centers in surrounding Sonoma County. SRJC is governed by the Sonoma County Junior College District.

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Occurrence of arsenic in the Dry Creek Basin, Sonoma County, California

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Sonoma County Organization of Public Employees v. County of Sonoma: The Contract Clause and Home Rule Powers Revitalized in California