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 2019 CWD year would be April 1st, 2019 through March 31st, 2020.

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
Green Lake 126 126 0
Langlade 136 136 0
Marinette 289 289 0
Door 19 19 0
Rock 138 138 15
Calumet 14 14 0
Ashland 37 37 0
Waushara 110 110 0
Sheboygan 170 170 1
Saint Croix 143 143 0
Rusk 146 146 0
Marathon 418 418 1
Lincoln 282 282 0
Milwaukee 81 81 0
Grant 672 672 61
Sauk 1006 1006 262
Price 275 275 0
Chippewa 215 215 0
Racine 43 43 0
Forest 56 56 0
Dunn 454 454 1
Eau Claire 385 385 3
Juneau 375 375 12
Waukesha 331 331 9
Dane 1157 1157 154
Wood 128 128 0
Kewaunee 21 21 0
Ozaukee 65 65 0
Shawano 281 281 0
Walworth 133 133 10
Columbia 629 629 66
Burnett 241 241 0
Lafayette 215 215 28
Brown 36 36 0
Waupaca 198 198 0
Pepin 77 77 0
Pierce 56 56 0
Winnebago 24 24 0
Kenosha 24 24 0
Marquette 370 370 2
Adams 362 361 6
Richland 1458 1458 246
Crawford 446 446 3
Oconto 157 157 0
Green 149 149 24
Clark 222 222 0
Iron 68 68 0
Washington 193 193 0
Unknown 20 20 1
Barron 179 179 0
Outagamie 45 45 0
Washburn 214 214 0
Vilas 175 175 0
Vernon 800 800 8
La Crosse 175 175 0
Dodge 168 168 0
Iowa 1491 1491 419
Bayfield 190 190 0
Florence 153 153 0
Sawyer 183 183 0
Jefferson 161 161 3
Taylor 104 104 0
Manitowoc 46 46 0
Fond du Lac 39 39 0
Oneida 470 470 2
Trempealeau 270 270 0
Buffalo 422 422 0
Portage 429 429 1
Monroe 438 438 0
Jackson 183 183 0
Polk 222 222 0
Douglas 152 152 0
Menominee 8 8 0
Totals: