Antioch, CA Sign Regulations: Political Signs (2026)

Political campaign signs are a form of core political speech protected by the First Amendment. Following Reed v. Town of Gilbert (2015), Antioch cannot impose size, number, or duration limits on political signs that differ from rules applied to other non-commercial yard signs. Under AMC Title 9 Chapter 9-5, political signs on private residential property are generally permitted without a permit up to 6 square feet (typical residential standard), must be on private property (not in the public right-of-way), and must not create visibility hazards at intersections. The city may enforce content-neutral time limits only if applied uniformly to all signs — historically some jurisdictions required removal within 10 days after an election, but such rules must treat all temporary signs the same. California Civil Code §4710 expressly protects homeowners in common-interest developments (HOAs): HOAs cannot prohibit the display of noncommercial signs, posters, flags, or banners on a separate interest, though they may restrict size up to 9 sq ft and impose reasonable time, place, and manner rules. Election Code §18370 prohibits destruction of political signs; doing so is a misdemeanor. Signs placed illegally on utility poles, traffic signs, public trees, or in medians are removed by Public Works without notice and may be discarded. For commercial zones and over-6-sq-ft signs, a temporary sign permit is required. Candidates and campaigns should also observe CVC §22357-related rules against obstructing traffic signs and FPPC disclosure requirements on committee-funded signage.