Siskiyou County, CA Property Maintenance: Garage Sale Rules (2026)

Based on the County's published code-enforcement information and the structure of the Siskiyou County Code, there is no identified countywide ordinance requiring a permit, charging a fee, or capping the number of garage or yard sales per year in the unincorporated areas. This contrasts with many cities that cap sales at two or three per year. Because no specific rule was located, residents should treat garage sales as generally permitted while observing two related sets of rules. First, signage: the County Code's sign regulations (Title 10, Zoning, Article 58, Sign Regulation) govern temporary signs, so garage-sale signs should not be posted in the public right-of-way or in ways that violate sign rules, and should be removed promptly after the sale. Second, blight/nuisance: leftover merchandise and accumulated items must not be allowed to pile up and become a code-enforcement nuisance. At the state level, California treats genuinely occasional, non-recurring 'garage sales' of used personal property as not requiring a seller's permit, but someone holding frequent or ongoing sales may be considered a business and need a permit from the California Department of Tax and Fee Administration. Anyone planning recurring or large-scale sales should confirm zoning and business-tax obligations with the County Planning Division.