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 2022 CWD year would be April 1st, 2022 through March 31st, 2023.

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
Waushara 201 201 0
Richland 1393 1393 375
Vernon 637 637 31
Jackson 204 204 0
Lincoln 166 166 0
Racine 46 46 2
Barron 107 107 0
Green Lake 304 304 0
Dunn 345 345 1
Milwaukee 20 20 0
Chippewa 133 133 0
Door 40 40 0
Ashland 18 18 0
Calumet 20 20 0
Columbia 477 477 93
Vilas 292 292 0
Marathon 513 513 2
Dodge 113 113 3
Buffalo 238 238 4
Clark 189 189 0
Ozaukee 55 55 0
Iowa 934 934 264
Iron 55 55 0
Sauk 866 866 228
Portage 388 388 2
Sawyer 81 81 0
St. Croix 94 94 0
Unknown 35 35 0
Sheboygan 170 170 1
Marinette 302 302 0
Shawano 350 350 1
Trempealeau 183 183 0
Lafayette 188 188 40
Oconto 194 194 0
Washington 146 146 0
Taylor 174 174 0
Bayfield 108 108 0
Forest 36 36 0
Menominee 16 16 0
Juneau 299 299 24
Waukesha 319 319 11
Green 196 196 37
Monroe 560 560 4
Oneida 443 443 1
Wood 201 201 1
Brown 126 126 0
Outagamie 66 66 0
Rock 118 118 15
Price 61 61 0
Kenosha 29 29 1
Walworth 96 96 12
Kewaunee 12 12 0
Eau Claire 310 310 2
Jefferson 167 167 4
Polk 174 174 0
Marquette 515 515 5
La Crosse 139 139 0
Adams 306 306 20
Fond du Lac 103 103 0
Manitowoc 57 57 0
Rusk 70 70 0
Waupaca 270 270 2
Douglas 71 71 0
Dane 1016 1016 198
Pierce 59 59 0
Grant 479 479 78
Burnett 187 187 0
Crawford 438 438 28
Winnebago 60 60 1
Washburn 206 206 0
Langlade 144 144 1
Pepin 41 41 0
Florence 37 37 0
Totals: