St. Clair County has no countywide garage- or yard-sale ordinance. In unincorporated areas there is no county permit or limit on sales. Inside cities and villages (Belleville, O'Fallon, Fairview Heights), the municipality sets any permit, frequency, or signage rules - check with your city hall.
There is no St. Clair County ordinance regulating residential garage or yard sales. In the unincorporated county, the applicable rules are general nuisance and property-maintenance provisions (Chapters 25 and 29) plus temporary-sign rules in the county Zoning Ordinance - not a dedicated garage-sale permit. Garage-sale regulation in Illinois is a municipal matter: many cities cap the number of sales per year, require a free permit, and restrict sign placement. Because most St. Clair County residents live inside a municipality, contact your city or village clerk for the exact limits that apply to your address.
No county garage-sale penalty exists; municipal violations (permit or sign rules) are enforced by your city under its own fine schedule.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how O'Fallon's garage sale rules rules stack up against other locations.
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