Rancho Cucamonga, CA Sign Regulations: Political Signs (2026)

Rancho Cucamonga regulates temporary political signs under Development Code Chapter 17.74 (Sign Regulations) in a content-neutral manner consistent with the First Amendment and the Supreme Court decision in Reed v. Town of Gilbert. Residents may post political or campaign signs on their own private property during election seasons without a permit, subject to aggregate size limits typically in the range of 6 square feet per sign on residential property and modest cumulative square footage per parcel. Signs cannot be placed on public property, in the public right-of-way (between the sidewalk and curb), attached to utility poles, street trees, or traffic control devices, and cannot block driver sight lines at intersections or driveway visibility triangles. Signs must be removed within a short period after the election, typically 10 days. Illuminated, moving, or flashing political signs are prohibited in residential zones. Candidates and campaigns that post signs in rights-of-way may have them removed by Public Works as a public nuisance, and commercial billboards for political messages in commercial zones must follow the general billboard standards of the Development Code.