McHenry County does not cap backyard chickens countywide. In unincorporated areas, keeping chickens and livestock is governed by the county Unified Development Ordinance zoning (agricultural and rural districts allow farm animals). Incorporated cities set their own limits, and Illinois right-to-farm law protects established farms.
The county's animal-control ordinance regulates dogs, cats and dangerous animals but not the number of backyard hens. In unincorporated McHenry County, whether you may keep chickens, goats, horses or other livestock depends on your zoning district under the McHenry County Unified Development Ordinance (UDO); agricultural and larger rural-residential lots permit farm animals, while denser residential districts may not. Established agricultural operations gain protection under the Illinois Farm Nuisance Suit Act (740 ILCS 70), which bars nuisance suits against a farm operating more than one year that was not a nuisance when it began. City residents must check the municipal code.
Keeping livestock in a district that does not permit it is a zoning violation enforced by Planning & Development, typically abated by notice, then citation and daily fines.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Crystal Lake collects yard waste and food-scrap compost weekly at the curb from April 1 through November 30. Leaves and grass must go in biodegradable paper ...
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Crystal Lake and McHenry County have no ordinance specifically banning or approving residential artificial turf. Installations must still meet Unified Develo...
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Illinois' Homeowners' Native Landscaping Act bars community associations from banning native-species plantings that are kept free of weeds and don't encroach...
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Neither Crystal Lake nor McHenry County prohibits residential rain barrels or rainwater collection, and Illinois has no statewide ban. The McHenry County Sto...
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Crystal Lake uses a color-coded water-conservation system. During a declared 'Yellow' condition, odd-numbered addresses water on odd dates and even addresses...
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Crystal Lake Chapter 526 lists noxious weeds - burdock, ragweed, thistle, poison ivy, wild mustard and others - plus any unmanaged vegetation as nuisance gre...
See how McHenry County's chickens & livestock rules stack up against other locations.
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