Sign Regulations in Bannock County, ID (2026)
3 rules for unincorporated Bannock County, Idaho.
Verified from official government sources
Political Signs
In unincorporated Bannock County, the county bans political and religious signs outright at its recreation and events services areas. Section 12.20.080(C) of the Bannock County Municipal Code states flatly that no religious or political signs are permitted at the Downey Fairgrounds, Events Center or Portneuf Wellness Complex, part of a broader ban on unauthorized advertising there.
No Political Signs at Bannock County Rec Areas
Heavy RestrictionsBannock County Code § 12.20.080(C)
B.Advertising. All advertising space is the exclusive property of Bannock County. Without prior authorization by the board, no signs, banners or printed material will be permitted.C.Absolutely no religious or political signs will be permitted.
Digital Billboards
In unincorporated Bannock County, a digital billboard's message must transition in two seconds or less and hold each display for at least eight seconds, with flashing prohibited. Digital billboards are confined to agricultural, recreational, industrial and light industrial districts, at least 250 feet from any residential district.
Digital Billboard Rules in Bannock County
Significant RestrictionsBannock County Code § 17.52.470(M), (N)
M.Changeable Message Billboards.1.Changeable message transition duration shall be two seconds or less.2.Changeable message duration shall be a minimum of eight seconds.3.Changeable message transition method shall either be instantaneous or fade. Flashing is prohibited. ... N.Billboards shall be allowed in agricultural, recreational, industrial, and light industrial districts. Billboards must be...
Freeway-Facing Signs
A billboard face adjacent to the Interstate in unincorporated Bannock County may reach 672 square feet, more than double the 300-square-foot cap for signs along a state highway or any other road. Section 17.52.470(L) and its Table 1 set the size, and the ordinance layers on height, spacing and lighting limits too.
Bannock County Interstate Billboard Size Limit
Some RestrictionsBannock County Code § 17.52.470(L)
L.Size of Signs.1.The maximum billboard area for any one face of an off-premise sign shall not exceed the value as shown in Table 1. The office of planning and development services may require a smaller sign on all other roads. This includes the border, trim, cutouts, and extensions, but does not include supports and decorative bases. Table 1 Adjacent to Interstate 672 feet 2 Adjacent to Stat...
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