Wisconsin Department of Natural Resources

CWD Deer Testing Results by County


This table shows available CWD test results from all counties where deer tissue samples have been collected. It includes data released through December 04, 2020. Results are sorted alphabetically by county name.

See the data for CWD Year 2020 only

See the data for CWD Year: 

If a county name does not appear on the list, then zero deer have been sampled from this location to date. If you click on a county, you can see the breakdown for individual hunting periods and CWD zones.

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
Adams 3789 3694 39
Ashland 728 717 0
Barron 1635 1587 0
Bayfield 1645 1598 0
Brown 463 457 0
Buffalo 2274 2250 0
Burnett 2221 2134 0
Calumet 236 224 0
Chippewa 1291 1275 0
Clark 1797 1784 0
Columbia 6813 6738 198
Crawford 2526 2476 21
Dane 31358 31249 1155
Dodge 2559 2527 5
Door 893 886 0
Douglas 1239 1204 0
Dunn 1915 1788 1
Eau Claire 1913 1884 7
Florence 1049 1047 0
Fond du Lac 617 569 0
Forest 628 626 0
Grant 6607 6540 176
Green 3650 3609 84
Green Lake 992 978 0
Iowa 50086 49931 3360
Iron 634 624 0
Jackson 2014 2001 0
Jefferson 7587 7559 17
Juneau 3098 2991 21
Kenosha 1174 1170 1
Kewaunee 504 490 0
La Crosse 1279 1269 0
Lafayette 3156 3139 103
Langlade 1384 1371 0
Lincoln 1920 1911 1
Manitowoc 1040 1012 0
Marathon 2995 2848 1
Marinette 1898 1875 0
Marquette 2107 2050 3
Menominee 58 58 0
Milwaukee 442 442 1
Monroe 2807 2765 0
Oconto 1453 1440 0
Oneida 3008 2987 4
Outagamie 737 723 0
Ozaukee 340 328 0
Pepin 526 515 0
Pierce 754 743 0
Polk 1734 1654 0
Portage 3714 3608 8
Price 1473 1464 0
Racine 1370 1364 1
Richland 15392 15153 879
Rock 8556 8531 174
Rusk 1338 1312 0
Saint Croix 884 877 0
Sauk 19237 19099 1142
Sawyer 1513 1503 0
Shawano 2448 2352 0
Sheboygan 1429 1334 1
Taylor 1240 1209 0
Trempealeau 1611 1589 0
Unknown 602 527 3
Vernon 4317 4259 28
Vilas 1903 1896 0
Walworth 7143 7116 90
Washburn 3398 3329 1
Washington 1018 1004 0
Waukesha 4346 4324 20
Waupaca 1897 1846 0
Waushara 1893 1841 0
Winnebago 396 389 0
Wood 1568 1535 0
Statewide Totals:

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