Cook County requires property owners to control weeds and noxious vegetation in unincorporated areas. Overgrown weeds are a building and zoning violation. Illinois Noxious Weed Law (505 ILCS 100) requires eradication of designated noxious weeds.
Property owners in unincorporated Cook County must control weeds and noxious vegetation per county property maintenance standards. The Illinois Noxious Weed Law (505 ILCS 100) requires landowners to eradicate certain designated noxious weeds including thistles and other invasive species. Cook County Building and Zoning enforces vegetation maintenance through inspections and complaint response. Violation notices require compliance within 30 days. Properties with overgrown weeds face fines of $100 to $1,000 per offense, with each day constituting a separate offense. Vacant lots are subject to enhanced enforcement. The Cook County Department of Public Health may also address weed-related health concerns such as ragweed and allergen management.
Weed violation: $100–$1,000 fine per day. State noxious weed violation: additional enforcement under 505 ILCS 100. 30 days to comply.
Cook County, IL
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Cook County, IL
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See how Cook County's weed ordinances rules stack up against other locations.
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