Colusa County, CA Sign Regulations: Political Signs (2026)

Colusa County regulates signs in the Zoning Code at Section 44-3.50 (Sign Regulations). Temporary 'campaign or political signs pertaining to an election to any public office or ballot measure' are listed among the temporary signs allowed without a permit at Section 44-3.50.040(b)(2). The provision allows them to be installed on private property with the property owner's consent, subject to these restrictions: (A) the maximum sign height is 12 feet; (B) all signs greater than 7 feet in height require a building permit in accordance with the building code; (C) no campaign or political sign may exceed 32 square feet; and (D) in no case may a campaign or political sign, through its construction, placement, or size, endanger the health, safety, or welfare of the public. The general temporary-sign rules in the same section also apply: temporary signs allowed without a permit may not be illuminated, may be no more than 5 feet high if freestanding (6 feet if affixed to a building), and 'shall not be placed on public property or in the public right-of-way' (Sec. 44-3.50.040(b)). Note the size/height allowances specific to political signs (12 feet/32 square feet) are stated in the political-sign subsection itself. Along state highways, the California Outdoor Advertising Act also applies. Because content-based limits on political speech raise First Amendment concerns, these size, height, and durational rules are enforced as time, place, and manner standards; direct questions to Colusa County Planning & Building.