CWD & EHD by county
Wyoming disease risk map.
Wyoming has had CWD in wild populations since at least 1985. WY G&F runs surveillance across multiple hunt areas. CWD is endemic across significant portions of the state's mule deer and elk range.
Confirm CWD management zones, sampling requirements, and carcass transport rules with Wyoming Game and Fish Department and USDA APHIS before hunting.
CWD detection timeline
CWD detection timeline
1983 – 2026
Wyoming county detections
Where it's been found.
Counties below have CWD detection records on file. Click for the county-level page.
Carcass transport rules
If hunting in a CWD-positive area, follow your state agency's carcass transport rules — most agencies prohibit moving whole carcasses with brain or spinal tissue across designated zone boundaries. Verify the current rules with your state wildlife agency before transporting any harvest.
CWD testing
Most state wildlife agencies offer free or low-cost CWD testing of harvested deer at check stations or sample-drop locations during season. Contact the state agency for current testing locations and turnaround times.
EHD activity in Wyoming
Wyoming sees occasional EHD outbreak history. EHD is not transmissible to humans, and meat from clinically healthy deer is safe to consume. Watch for the disease-specific signs reported by hunters and biologists in late summer.
Hunter FAQ
Common questions, Wyoming.
Is CWD present in Wyoming?+
Yes. Wyoming has confirmed CWD detections since 1985. Verify current management-zone boundaries with Wyoming Game and Fish Department.
What are the Wyoming carcass transport rules?+
If hunting in a CWD-positive area, follow your state agency's carcass transport rules — most agencies prohibit moving whole carcasses with brain or spinal tissue across designated zone boundaries. Verify the current rules with your state wildlife agency before transporting any harvest.
How do I get CWD testing in Wyoming?+
Most state wildlife agencies offer free or low-cost CWD testing of harvested deer at check stations or sample-drop locations during season. Contact the state agency for current testing locations and turnaround times.
How active is EHD in Wyoming?+
Occasional EHD outbreak history. EHD is not transmissible to humans and meat from clinically healthy deer remains safe to consume.
Is venison from CWD or EHD-affected deer safe to eat?+
EHD is not transmissible to humans. For CWD, the CDC and major health agencies recommend that hunters test deer harvested from CWD-positive zones and not consume meat from animals that test positive. No human cases of CWD have been documented.
Primary sources
- CWD sourceWyoming Game and Fish Department
- EHD sourceWyoming Game and Fish Department
- FederalUSDA APHIS — Chronic Wasting Disease
- Hunter resourceNational Deer Association
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