Caldwell, ID Sign Regulations: Garage Sale Signs (2026)

Caldwell's sign code, City Code 10-02-06, does not contain a separate carve-out for garage-sale or yard-sale signs, so they are governed by the city's general residential and temporary-sign provisions. Single-family and two-family residential properties in the RS-1, RS-2, and R-1 zoning districts are permitted signs not exceeding 6 square feet in total sign area per road frontage, which covers a homeowner's on-property sale sign. Temporary signs in Caldwell are limited to banners, yard signs, plywood signs, certain changeable-copy signs, and portable signs. The biggest practical constraint is placement: any sign placed illegally within a public right of way, right-of-way area, or vision triangle, or that presents an immediate vehicular or pedestrian safety hazard, may be removed and disposed of by city staff with or without notification, and no sign taller than 3 feet is permitted in a vision triangle. That means the common practice of stapling sale arrows to utility poles or planting them on street corners and medians is not allowed and those signs can be pulled. Keep garage-sale signs on your own property, within the 6-square-foot allowance, and take them down promptly after the sale. Because the city addresses these through the general temporary-sign and right-of-way rules rather than a dedicated section, contact Code Compliance for any site-specific question.