Wisconsin Department of Natural Resources

CWD Year 2018


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 Game Farm deer and elk, please contact the Wisconsin Department of Agriculture, Trade, and Consumer Protection (phone 608-224-4872, fax 608-224-4871).


County # Sampled # Analyzed Positive for CWD
Rock 100 100 5
Marinette 193 193 0
Door 11 11 0
Langlade 122 122 0
Green Lake 50 50 0
Calumet 23 23 0
Ashland 8 8 0
Lincoln 418 418 0
Grant 586 586 43
Sheboygan 77 77 0
Waushara 127 126 0
Sauk 939 939 186
Marathon 357 356 0
Rusk 47 47 0
Milwaukee 83 83 0
Forest 84 84 0
Saint Croix 202 202 0
Chippewa 198 198 0
Price 52 52 0
Racine 35 35 0
Waukesha 251 251 3
Eau Claire 341 341 2
Wood 124 124 0
Dane 1096 1096 124
Juneau 374 374 5
Dunn 378 378 0
Kewaunee 12 12 0
Pepin 79 79 0
Columbia 557 557 38
Shawano 247 247 0
Waupaca 174 174 0
Pierce 299 299 0
Ozaukee 49 49 0
Lafayette 155 155 21
Walworth 68 68 3
Burnett 63 63 0
Brown 12 11 0
Winnebago 14 14 0
Kenosha 22 22 0
Clark 223 223 0
Adams 360 360 12
Richland 1392 1392 187
Oconto 113 113 0
Crawford 396 396 9
Barron 77 77 0
Marquette 127 127 1
Green 139 139 9
Washington 154 154 0
Unknown 22 22 0
Iron 16 16 0
Outagamie 13 13 0
Vernon 751 751 11
Iowa 1502 1502 397
Jefferson 131 131 1
Washburn 126 126 0
Vilas 296 296 0
Taylor 44 44 0
Bayfield 62 62 0
Fond du Lac 29 29 0
Dodge 217 217 3
Manitowoc 31 31 0
La Crosse 165 165 0
Florence 181 181 0
Sawyer 36 36 0
Buffalo 441 441 0
Oneida 596 596 1
Trempealeau 238 238 0
Jackson 220 220 0
Monroe 562 562 0
Portage 362 362 2
Polk 118 118 0
Douglas 21 21 0
Menominee 9 9 0
Totals:

For questions or comments about
Chronic Wasting Disease,
send e-mail to: Wildlife Health