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

Mariposa County is entirely unincorporated, and we did not locate a county ordinance that sets a permit requirement, a maximum number of sale days, or signage rules specifically for residential garage or yard sales. An occasional garage or yard sale of a household's own property is generally an incidental personal activity rather than a regulated commercial 'home occupation' or business use under the County's zoning ordinance (Title 17). Residents should still follow general standards that do apply: temporary signs advertising a sale are subject to the County's sign and design-review rules under the zoning code (the County's code-compliance log tracks 'Signs' that lack proper review or are improper temporary banners), and any leftover unsold goods and trash must be stored and disposed of in compliance with solid-waste Chapter 8.36 rather than dumped or burned. A recurring or commercial-scale resale operation run from a home could cross into a regulated home occupation or retail use requiring a permit. Because rules can change and the zoning code is detailed, residents planning frequent or large sales should confirm current requirements with the Mariposa County Planning Department before advertising. Do not rely on neighboring-county or out-of-state garage-sale limits, which do not apply here.