Sonoma County 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.

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Country: United States
Inception: 1850
Website: https://sonomacounty.gov/

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Facts from Wikidata (CC0). Image by CrabTree13 via Wikimedia Commons (CC BY-SA 3.0).

Sonoma County

county in California, United States

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About Sonoma County