2 county-level rules, plus city-specific rules for 1 city in Ada County, Idaho.
Verified from official government sources
Ada County's sign code is content-neutral, so it does not single out political signs. Temporary signs, including yard signs, are allowed without a permit: in residential districts up to six per property at 4 square feet and 8 feet tall each; any sign visible only from your own parcel is
Ada County Code 8-3-12(C)(5)
Any sign that is visible only from the parcel where it is located.
Garage-sale signs fall under Ada County's content-neutral temporary-sign rules. No permit is needed: residential lots may have up to six temporary signs, each up to 4 square feet and 8 feet tall. Signs may not sit in a public street or highway right-of-way, and the owner must remove them.
Ada County Code 8-3-12(J)(1)
Temporary signs are allowed without a permit in all districts but must comply with the standards in Table 8-3-12-11: Temporary Signs by District.
1 cities in Ada County have their own sign regulations rules. Each link goes to that city's dedicated page with code citations.
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Ada County Ordinance Hub →