No senate race in Wisconsin this year.
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Senate race by county
| County | Dem | GOP | Ind | |
|---|---|---|---|---|
| Adams | – | – | – | |
| Ashland | – | – | – | |
| Barron | – | – | – | |
| Bayfield | – | – | – | |
| Brown | – | – | – | |
| Buffalo | – | – | – | |
| Burnett | – | – | – | |
| Calumet | – | – | – | |
| Chippewa | – | – | – | |
| Clark | – | – | – | |
| Columbia | – | – | – | |
| Crawford | – | – | – | |
| Dane | – | – | – | |
| Dodge | – | – | – | |
| Door | – | – | – | |
| Douglas | – | – | – | |
| Dunn | – | – | – | |
| Eau Claire | – | – | – | |
| Florence | – | – | – | |
| Fond du Lac | – | – | – | |
| Forest | – | – | – | |
| Grant | – | – | – | |
| Green | – | – | – | |
| Green Lake | – | – | – | |
| Iowa | – | – | – | |
| Iron | – | – | – | |
| Jackson | – | – | – | |
| Jefferson | – | – | – | |
| Juneau | – | – | – | |
| Kenosha | – | – | – | |
| Kewaunee | – | – | – | |
| La Crosse | – | – | – | |
| Lafayette | – | – | – | |
| Langlade | – | – | – | |
| Lincoln | – | – | – | |
| Manitowoc | – | – | – | |
| Marathon | – | – | – | |
| Marinette | – | – | – | |
| Marquette | – | – | – | |
| Menominee | – | – | – | |
| Milwaukee | – | – | – | |
| Monroe | – | – | – | |
| Oconto | – | – | – | |
| Oneida | – | – | – | |
| Outagamie | – | – | – | |
| Ozaukee | – | – | – | |
| Pepin | – | – | – | |
| Pierce | – | – | – | |
| Polk | – | – | – | |
| Portage | – | – | – | |
| Price | – | – | – | |
| Racine | – | – | – | |
| Richland | – | – | – | |
| Rock | – | – | – | |
| Rusk | – | – | – | |
| Sauk | – | – | – | |
| Sawyer | – | – | – | |
| Shawano | – | – | – | |
| Sheboygan | – | – | – | |
| St. Croix | – | – | – | |
| Taylor | – | – | – | |
| Trempealeau | – | – | – | |
| Vernon | – | – | – | |
| Vilas | – | – | – | |
| Walworth | – | – | – | |
| Washburn | – | – | – | |
| Washington | – | – | – | |
| Waukesha | – | – | – | |
| Waupaca | – | – | – | |
| Waushara | – | – | – | |
| Winnebago | – | – | – | |
| Wood | – | – | – |