Sign Regulations in San Diego County, CA (2026)

3 county-level rules, plus city-specific rules for 8 cities in San Diego County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of San Diego County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Political Signs

Political signs in unincorporated San Diego County are protected by the First Amendment and California Elections Code Section 18310. Property owners may display political signs on their property. Some size and placement restrictions apply under the County sign ordinance.

San Diego County Political Sign Regulations

Few Restrictions

California Civil Code § 4710 (HOA Davis-Stirling Act — protection for noncommercial signs, flags, and banners on member property)

rticle 1 added by Stats. 2012, Ch. 180, Sec. 2. ) 4710. (a) The governing documents may not prohibit posting or displaying of noncommercial signs, posters, flags, or banners on or in a member’s separate interest, except as required for the protection of public health or safety or if the posting or display would violate a local, state, or federal law.

Full ordinance details →Official source ↗

Garage Sale Signs

Temporary garage sale signs in unincorporated San Diego County are subject to the County's general sign regulations. Signs cannot be placed in public rights-of-way or on utility poles. On-property signs for active garage sales are generally permitted.

San Diego County Garage Sale Sign Regulations

Few Restrictions

Full ordinance details →Official source ↗

Holiday Displays

Holiday displays on private property in unincorporated San Diego County are generally permitted as temporary decorations. The County does not have specific restrictions on residential holiday displays. Fire safety rules apply to outdoor decorations, especially in wildfire zones.