This table shows available CWD test results for the selected year from all counties where deer tissue samples have been collected. Results are sorted alphabetically by county name. Results for an individual year are for the CWD year, which runs from April 1st through March 31st. For example, the results for the 2014 CWD year would be April 1st, 2014 through March 31st, 2015.

See data for all years

See the data for CWD Year: 

If a county name does not appear on the list, then zero deer were sampled from this location in the selected CWD year.

Please take note of the following when interpreting data for any county where Positive test results have been obtained. CWD occurrence in any County is likely to be restricted to one or more local (isolated) areas. Reports of CWD occurrence may not imply overall prevalence in a county. Detailed information on county statistics is provided when a specific County name is selected.

Note that the DNR data reported here only includes wild deer. For information on test results for farm-raised deer and elk, please contact the DATCP Home Farm-Raised Deer Program (wi.gov) (phone 608-224-4872).


County # Sampled # Analyzed Positive for CWD
Richland 256 256 13
Vernon 208 208 0
Barron 72 72 0
Waushara 12 12 0
Jackson 5 5 0
Lincoln 1 1 0
Racine 1 1 0
Chippewa 1 1 0
Green Lake 1 1 0
Dunn 2 2 0
Calumet 1 1 0
Columbia 284 284 3
Dodge 29 29 0
Marathon 285 285 0
Buffalo 5 5 0
Clark 1 1 0
Vilas 1 1 0
Ozaukee 1 1 0
Portage 212 212 0
Iowa 1124 1124 181
Sauk 564 564 63
Unknown 4 4 0
Lafayette 50 50 4
Shawano 49 49 0
Marinette 2 2 0
Oconto 1 1 0
Washington 5 5 0
Taylor 2 2 0
Trempealeau 2 2 0
Bayfield 3 3 0
Wood 34 34 0
Rock 223 223 5
Green 53 53 2
Juneau 74 74 0
Walworth 83 83 2
Monroe 11 11 0
Waukesha 22 22 1
Kenosha 1 1 0
Polk 6 6 0
Jefferson 141 141 2
Adams 274 274 2
Marquette 17 17 0
La Crosse 6 6 0
Fond du Lac 1 1 0
Waupaca 29 29 0
Grant 125 125 3
Dane 760 760 50
Burnett 98 98 0
Crawford 59 59 0
Washburn 264 264 0
Winnebago 2 2 0
Douglas 1 1 0
Totals: