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