Sonoma County, CA Public Conduct: Public Alcohol Use (2026)
Key Facts
- Governing section
- County Code § 19-9
- Covered locations
- Streets, sidewalks, alleys, public lots
- Hours covered
- At any time
- Applies to
- Unincorporated county only
- Enforcement
- Sonoma County Sheriff's Office
Summary
Drinking beer, wine, or any alcoholic beverage on a public street, sidewalk, road, alley, or open parking lot is unlawful at all times in unincorporated Sonoma County.
It shall be unlawful for any person to consume any beer, wine or other alcoholic beverages at any time on any public highway, road, street, sidewalk, lane, alley or parking lot open for public use within the county of Sonoma.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 64 Update 2).
Full Breakdown
County Code Section 19-9 bans consuming beer, wine, or any other alcoholic beverage at any time on a public highway, road, street, sidewalk, lane, alley, or parking lot open for public use in unincorporated Sonoma County. The ban applies around the clock, with no daytime carve-out and no event exception written into the section. A separate, narrower rule (Section 20-13) lets the park authority post and enforce alcohol bans in specific regional parks. This section applies only outside the county's nine cities. Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Sebastopol, Cotati, Cloverdale, and the City of Sonoma each set their own public-drinking rules under their own municipal codes.
Violations & Fines
Violating Section 19-9 is a misdemeanor prosecuted under the county's general penalty provision; sheriff's deputies can cite or arrest anyone drinking in view on a county road, sidewalk, or public lot.
Frequently Asked Questions
Can I drink on a sidewalk in unincorporated Sonoma County?
Does this rule cover the City of Sonoma or Santa Rosa?
Sources & Official References
Other rules in Sonoma County
California rules heatmap·Compare Sonoma County to another location·View the California public conduct overview
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