County
Sonoma County
California • United States
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Sonoma County is a county in California, United States. It has a population of about 488,863 and an area of 4,580 km². It contains 17 towns, 8 villages, 1 neighborhood, and 1 city with a combined population of about 435,239. The largest are Santa Rosa (178,127), Petaluma (60,438), and Rohnert Park (42,407). It was established in 1850. 3 official videos are published about the United States.
- Area
- 4 580 km²
- Established
- 1850
- Official website
- sonomacounty.gov
Referenced in
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Place data from GeoNames, used under CC BY 4.0 and modified for this site.


