Yes, backyard chickens are legal in Wyoming, but local ordinances govern flock size, coop placement, and sanitation. Wyoming’s minimal state-level restrictions defer to county and municipal regulations, creating a patchwork of rules. Some jurisdictions, like Laramie County, cap flock sizes at six hens with no roosters, while others, such as Jackson Hole, impose stricter limits due to wildlife interactions. The Wyoming Department of Agriculture (WDA) enforces biosecurity protocols but does not preempt local zoning laws. Recent 2026 amendments to the Wyoming Livestock Board’s guidelines emphasize disease prevention, particularly for avian influenza, requiring coop maintenance and flock registration in high-risk zones.
Key Regulations for Keeping Backyard Chickens in Wyoming
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Flock Size and Composition: Most counties limit hens to 6–12 birds, with roosters often prohibited due to noise ordinances. For example, Teton County restricts flocks to 10 hens, while Natrona County allows up to 25 without a permit. Verify local zoning codes, as some municipalities classify chickens as “livestock,” triggering additional restrictions.
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Coop and Property Standards: Setbacks from property lines (typically 25–50 feet) and maximum coop heights (e.g., 8 feet in Cheyenne) are common. Laramie’s 2025 ordinance mandates coops be predator-proof, well-ventilated, and cleaned weekly to mitigate odor complaints. Solar-powered lighting may be required in dark urban areas.
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Biosecurity and Registration: The WDA’s 2026 Avian Health Protocol requires all flocks over 50 birds to register, though smaller backyard flocks are exempt unless in a surveillance zone. Mandatory reporting of sick or deceased birds applies statewide, with penalties for non-compliance including fines up to $1,000 or flock quarantine.