Yes, backyard chickens are permitted in most Illinois municipalities, but local ordinances and state health codes impose strict limits.
Illinois does not have a statewide ban on backyard chickens, yet compliance hinges on municipal and county regulations. The Illinois Department of Agriculture enforces sanitary standards under the Animal Welfare Act, while local zoning boards—such as those in Chicago, Cook County, and collar counties—set flock size, coop placement, and sanitation rules. Recent 2026 amendments to the Illinois Municipal Code (70 ILCS 5/1) empower counties to impose additional biosecurity measures, including mandatory coop inspections for flocks exceeding 50 birds.
Key Regulations for Keeping Backyard Chickens in Illinois
- Flock Size Limits: Most counties cap backyard flocks at 50 hens; roosters are prohibited in residential zones under Cook County Zoning Ordinance § 17.20.040 and DuPage County Code § 10-4-10.
- Coop Standards: Structures must be at least 20 feet from neighboring residences, elevated 18 inches above ground, and constructed with non-porous materials to comply with IDOA Sanitation Guidelines (2024).
- Permit Requirements: Urban areas like Chicago mandate a Small Livestock Permit (fee: $50/year) through the Chicago Department of Public Health, requiring proof of coop compliance with Chicago Municipal Code § 7-12-110.