*These data are provisional and may be revised or adjusted in the future.
Cumulative Dead Bird Infections by County - Wisconsin, 2004
| Adams County | 3 |
| Ashland County | 1 |
| Barron County | 4 |
| Bayfield County | 1 |
| Brown County | 2 |
| Calumet County | 1 |
| Chippewa County | 2 |
| Clark County | 2 |
| Columbia County | 3 |
| Crawford County | 2 |
| Dane County | 6 |
| Dodge County | 2 |
| Door County | 1 |
| Douglas County | 2 |
| Dunn County | 2 |
| Eau Claire County | 2 |
| Fond du Lac County | 3 |
| Grant County | 1 |
| Green County | 2 |
| Green Lake County | 1 |
| Iron County | 1 |
| Jackson County | 4 |
| Jefferson County | 3 |
| Kenosha County | 2 |
| Kewaunee County | 1 |
| La Crosse County | 3 |
| Langlade County | 2 |
| Lincoln County | 3 |
| Marathon County | 3 |
| Marinette County | 2 |
| Marquette County | 2 |
| Milwaukee County | 4 |
| Monroe County | 2 |
| Oneida County | 2 |
| Outagamie County | 2 |
| Ozaukee County | 2 |
| Pepin County | 2 |
| Pierce County | 2 |
| Portage County | 3 |
| Racine County | 2 |
| Richland County | 1 |
| Rock County | 3 |
| Rusk County | 2 |
| Saint Croix County | 3 |
| Sauk County | 2 |
| Sawyer County | 1 |
| Shawano County | 3 |
| Sheboygan County | 4 |
| Trempealeau County | 1 |
| Vilas County | 2 |
| Walworth County | 2 |
| Washburn County | 2 |
| Washington County | 2 |
| Waukesha County | 2 |
| Waupaca County | 2 |
| Waushara County | 2 |
| Winnebago County | 2 |
| Wood County | 2 |