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

Mono County combines its General Plan and Zoning Code, and sign rules appear in the Land Use Element, Development Standards Chapter 07 - Signs. Section 07.020(3) addresses political signs: they may be posted only so long as needed to convey the message intended and must be removed immediately thereafter, and signs with adhesive backing may not be attached directly to any structure but must first be affixed to a temporary backing of wood, paper, or plastic for support. The County's published regulations do not impose a specific square-footage cap on political signs on private property. Under Section 07.020(9), temporary signs in residentially designated areas are limited to garage-sale and open-house signs at 3 sq ft, and event/holiday materials may not be erected more than 30 days before the event - but that same paragraph expressly states that political signs and signs displaying noncommercial messages are not subject to that paragraph. Separately, California Business and Professions Code 5405.3 (the Outdoor Advertising Act) governs temporary political signs visible from or near state highways: such signs may be no larger than 32 square feet, may be placed no sooner than 90 days before the election and must be removed within 10 days after, may not be placed within the highway right-of-way or within 660 feet of a landscaped freeway, and require a filed statement of responsibility.