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 2018 CWD year would be April 1st, 2018 through March 31st, 2019.

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
Lincoln 419 419 0
Richland 1393 1393 187
Vernon 751 751 11
Jackson 219 219 0
Waushara 127 126 0
Barron 77 77 0
Racine 35 35 0
Chippewa 199 199 0
Milwaukee 85 85 0
Dunn 376 376 0
Green Lake 50 50 0
Ashland 8 8 0
Door 11 11 0
Calumet 23 23 0
Marathon 357 356 0
Vilas 296 296 0
Clark 224 224 0
Dodge 217 217 3
Columbia 555 555 38
Buffalo 441 441 0
Ozaukee 49 49 0
Portage 362 362 2
Iowa 1505 1505 397
Sauk 946 946 187
Iron 16 16 0
Sawyer 36 36 0
Unknown 22 22 0
Taylor 44 44 0
Oconto 113 113 0
Marinette 193 193 0
Shawano 247 247 0
Sheboygan 77 77 0
Trempealeau 238 238 0
Washington 155 155 0
Forest 84 84 0
Lafayette 157 157 21
Bayfield 62 62 0
Menominee 9 9 0
Juneau 374 374 5
Oneida 596 596 1
Price 52 52 0
Rock 101 101 5
Green 140 140 9
Monroe 562 562 0
Wood 124 124 0
Waukesha 252 252 3
Walworth 68 68 3
Kenosha 22 22 0
Outagamie 13 13 0
Brown 13 12 0
Kewaunee 12 12 0
Polk 118 118 0
Adams 360 360 12
Eau Claire 343 343 2
Jefferson 131 131 1
Fond du Lac 29 29 0
Marquette 128 128 1
La Crosse 165 165 0
Rusk 47 47 0
Manitowoc 31 31 0
Pierce 299 299 0
Langlade 122 122 0
Florence 181 181 0
Dane 1089 1089 124
Grant 587 587 43
Crawford 397 397 9
Saint Croix 202 202 0
Waupaca 179 179 0
Washburn 126 126 0
Burnett 64 64 0
Pepin 79 79 0
Winnebago 14 14 0
Douglas 21 21 0
Totals: