Sign Regulations in Sonoma, CA (2026)
3 verified sign regulations for Sonoma, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Political Signs
Political signs in the City of Sonoma are regulated under Sonoma Municipal Code (SMC) §18.12.090(L) and may not be posted on public property under SMC §18.28.036. California Penal Code §556.1 requires owner consent before placing any sign on private property.
Political Signs in Sonoma
Some RestrictionsGarage Sale Signs
Sonoma Municipal Code §5.08.201.4 prohibits placing any garage, yard or patio sale sign, billboard, placard or other advertisement on any public property within the City, and also prohibits placing such signs on the premises where the sale is being conducted.
Garage Sale Signs in Sonoma
Heavy RestrictionsHoliday Displays
The City of Sonoma does not impose a specific ordinance limiting residential holiday displays. Outdoor decorations are generally treated as accessory to a residence and not as regulated 'signs' under Sonoma Municipal Code Title 18; however, public-right-of-way and nuisance rules still apply.
Holiday Displays and Decorations in Sonoma
Few RestrictionsLooking for Sonoma County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sonoma city rules.
Sign Regulations in Sonoma County →