Sign Regulations in Riverside County, CA (2026)

3 county-level rules, plus city-specific rules for 8 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

In unincorporated Riverside County, political/non-commercial signs are temporary signs under Ordinance No. 806 (Title 17, Chapter 17.254). During an election period they may be up to 32 sq ft and 6 feet tall, with an 80 sq ft per-lot aggregate cap, and may sit in the road right-of-way; they must come down within 10 days after the election.

Riverside County Political & Non-Commercial Sign Rules

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

Under Riverside County Ordinance No. 806 (Title 17, Chapter 17.254), a yard or garage sale sign may not exceed 4 square feet. Only one sign per lot may be displayed at a time, no more than three signs per lot per calendar year, posted no sooner than 15 days before the sale and removed within 5 days after.

Riverside County Garage Sale Sign Rules

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.