Sign Regulations in Idaho (2026)

Idaho Code 55-3209 prevents homeowners associations from prohibiting political sign displays statewide. HOAs may impose…

In unincorporated Bannock County, the county bans political and religious signs outright at its recreation and events…

Ada County's sign code is content-neutral, so it does not single out political signs. Temporary signs, including yard…

Caldwell bans political signs, banners and campaign literature within 100 feet of a polling place entry door on…

In the City of Coeur d'Alene, Idaho, one permit covers an entire campaign, and each campaign sign is subject to the…

Kootenai County's sign code has no separate category for political signs. In residential and agricultural zones…

Boise exempts political signs from permit requirements as long as they stay off the public right-of-way and don't block…

Garage-sale signs fall under Ada County's content-neutral temporary-sign rules. No permit is needed: residential lots…

Caldwell limits garage-sale advertising to four temporary signs per sale, each capped at six square feet, and requires…

Kootenai County has no garage-sale-sign-specific rule. A garage sale sign on your own property is a temporary…

Meridian limits garage-sale signs to four per sale, six square feet each, requires the property owner's permission to…

In the City of Coeur d'Alene, Idaho, a sign for a garage sale needs no sign permit when it is posted on the property…

Yard sale signs in Pocatello must list the sale date(s) and come down within 48 hours after the sale ends, per City…

Ada County Code 8-3-8(C)(3) exempts temporary holiday lighting from the county's outdoor lighting standards, but only…

Boise exempts religious symbols and seasonal decorations from sign permits, with no code-set start or removal date for…

Meridian exempts holiday lighting from its outdoor lighting standards, including lumen caps and cutoff-shield rules, as…

Holiday decorations in Pocatello never need a sign permit. City Code section 17.07.020.C lists them among ten sign and…

In the City of Coeur d'Alene, Idaho, Billboards are prohibited except those lawful on December 1, 2019, which can stay…

Every off-premises billboard in Meridian is classified nonconforming, so no new ones can be permitted, and any sign…

In unincorporated Bannock County, a digital billboard's message must transition in two seconds or less and hold each…

Electronic billboards in Boise must show static frames only, changing no more than once every 8 seconds, with strict…

Bonneville County bans movement and flashing on LED and tri-vision billboards under County Code § 152.30(D): every…

Digital signs in Caldwell's commercial and industrial districts must attach to a permitted monument sign, stay under 25…

Idaho Falls bars new billboards within 750 feet of another billboard, the Snake River corridor, or a historic property…

Kootenai County has no standalone digital billboard category; it regulates the technology as an electronic message…

Ada County Code 8-3-12(K) caps animated and electronic message content on billboards at 20% of the sign face, limits…

Digital billboards are allowed in Nampa's commercial, industrial, and other nonresidential zones, but LED billboard…

Digital signs in Pocatello, called Electronic Message Centers, must run static messages held at least 8 seconds each…

Boise lets window signs cover up to 25 percent of a window's area without a sign permit; go over that and the sign…

Caldwell caps window signage at 25 percent of the window area on each building façade. City Code § 10-02-06-8(2)(F)…

Idaho Falls bars signs from covering a window, door, or opening required by the adopted Building or Fire Code for…

Unincorporated Kootenai County caps window, wall, awning and canopy signs by zone. Commercial, light industrial and…

In Meridian, window signs count toward a business's overall building sign allowance and are capped at one square foot…

Window signs in Pocatello count against a building's total sign area and cannot cover more than 50% of the window space…

In the City of Coeur d'Alene, Idaho, a Sign affixed or attached to the interior or exterior of a window or door needs…

Bonneville County exempts window signs from its sign permit process. Under Code § 152.32(I), a sign displayed inside a…

In the City of Coeur d'Alene, Idaho, a Billboard over 300 square feet can be relocated only in C-17, M, or LM zoning…

Pocatello lets a business near an interstate interchange erect one pole sign up to 60 feet tall, well above the…

A billboard face adjacent to the Interstate in unincorporated Bannock County may reach 672 square feet, more than…

Caldwell allows one freestanding freeway-oriented billboard per qualifying lot, but only within 500 feet of the I-84…