Idaho Falls, ID Sign Regulations: Political Signs (2026)

Political (campaign) signs in Idaho Falls sit at the intersection of the city's Sign Code, in Title 7, Chapter 9 of the Municipal Code, and Idaho state law, which strongly protects political speech. Under Idaho Code 55-3209, a homeowners association may not prohibit the display of a political sign, defined as any fixed, ground-mounted display in support of or in opposition to a candidate or ballot measure; an HOA may only adopt reasonable rules on the time, size, place, number, and manner of display and must give three days' written notice before enforcement. The state also restricts where signs may be placed in the public right-of-way: ITD's guidance and Idaho Code 18-7029 and 40-1910 direct that signs be kept out of the state highway right-of-way, where they can block sight distance and hinder maintenance, and signs improperly placed there may be removed. Best practice is to place political signs on private property with the owner's permission and outside the road right-of-way. On private property within the city, signs must still comply with the Sign Code's general placement standards. Because the city Sign Code PDF text was not machine-readable during research, confirm any specific size, height, or duration limits for residential political signs directly with the city before posting.