Idaho Falls, ID Sign Regulations: Garage Sale Signs (2026)

Garage and yard sale signs in Idaho Falls are a type of temporary sign and fall under the city's Sign Code in Title 7, Chapter 9 of the Municipal Code, which sets standards for temporary signage. The most important rule that residents run into is where the signs may go. Idaho law and Idaho Transportation Department guidance make clear that signs should be kept out of the public highway right-of-way; under Idaho Code 18-7029 and 40-1910, signs in the right-of-way can block required sight distances, create distractions, and hinder maintenance, and they may be removed by the road authority. The right-of-way generally includes the area between the road and adjacent fences, the space around power poles near the highway, and fences or bridges over the road. On private property, you must have the property owner's permission before posting a sign. The safest approach is to place garage sale signs on private property, outside the right-of-way, and remove them promptly once the sale ends. Because the Idaho Falls Sign Code PDF text was not machine-readable during research, confirm any specific size limits, number, or duration rules for garage sale signs directly with the city's Community Development Services before posting, since temporary signs are subject to the Sign Code's district standards.