Sign Regulations in Riverside County, CA (2026)

3 county-level rules, plus city-specific rules for 6 cities in Riverside County, California.

Verified from official government sources

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

Political Signs

Unincorporated Riverside County permits temporary political signs on private property without a permit, consistent with the First Amendment and California Elections Code. Signs may be posted up to 90 days before an election and must be removed within 10 days after, and the aggregate size on a single residential parcel is generally capped at 32 square feet per Riverside County Ordinance 348.

Political Signs in Riverside County

Few Restrictions

Cal. Civ. Code Sec. 4710 (Display of Noncommercial Signs)

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. (b) For purposes of this section, a noncommercial sign, poster, flag, or banner may be made of...

Full ordinance details →Official source ↗

Garage Sale Signs

Garage sale signs in unincorporated Riverside County are allowed on private property with owner permission but are prohibited in the public right-of-way, on utility poles, traffic signs, and medians. Signs must be removed immediately after the sale; code enforcement removes and discards off-site signs without notice.

Garage Sale Signs in Riverside County

Some Restrictions

Full ordinance details →Official source ↗

Holiday Displays

Residential holiday lighting and seasonal decorations are allowed in unincorporated Riverside County without a permit. Displays must comply with Ordinance 655 Mount Palomar Light Pollution rules in the western portion of the county and must not obstruct the public right-of-way or create traffic hazards. Displays should be removed within a reasonable time after the holiday.