Colusa County, CA Sign Regulations: Garage Sale Signs (2026)

Colusa County Code Section 44-3.50 (Sign Regulations) lists the categories of signs allowed with and without a permit, but it does not single out 'garage sale' or 'yard sale' signs. There is no dedicated exemption or permit for them, so they are treated under the general rules. A small on-site sign may qualify as a permanent sign allowed without a permit if it is no greater than 8 square feet and meets the general standards (Sec. 44-3.50.040(a)(1)), but temporary off-premise advertising is restricted. Critically, Section 44-3.50.060 (Prohibited Signs) bars 'signs that identify a use, facility, or service which is not located on the parcel or premise where the sign is located,' except for limited temporary real estate signs and permitted off-site billboards. A garage sale sign placed on a roadside or at an intersection away from the home being advertised is an off-site sign and is therefore generally prohibited. In addition, the temporary-sign rules provide that permit-exempt temporary signs 'shall not be placed on public property or in the public right-of-way' (Sec. 44-3.50.040(b)), may not be illuminated, and are height-limited. Because Colusa County's code has no specific garage-sale-sign allowance, residents should keep such signs on their own property, obtain the owner's consent for any private property used, and avoid the public right-of-way. Confirm placement with Colusa County Planning & Building.