The figures below represent final year-end total figures for the years 2015-2019. The 2020 preliminary figures represent fatalities that had been reported to the WisDOT Crash Records Unit as of the date shown below.
Fatalities by County February 28, 2021
| Year-to-date | Year-end total figures | 2016-2020 |
| County | 2021* | 2020* | 2019 | 2018 | 2017 | 2016 | Average |
| Adams | | 5 | 3 | 2 | 1 | 3 | 3 |
| Ashland | | 1 | 1 | 1 | 3 | 5 | 2 |
| Barron | 1 | 5 | 9 | 7 | 5 | 4 | 6 |
| Bayfield | | 4 | 1 | 2 | 3 | 3 | 3 |
| Brown | | 17 | 9 | 18 | 25 | 18 | 17 |
| Buffalo | | 4 | 2 | 5 | 0 | 3 | 3 |
| Burnett | | 3 | 9 | 6 | 5 | 4 | 5 |
| Calumet | | 5 | 1 | 3 | 5 | 2 | 3 |
| Chippewa | | 9 | 6 | 14 | 12 | 1 | 8 |
| Clark | | 7 | 4 | 6 | 9 | 10 | 7 |
| Columbia | 3 | 13 | 9 | 11 | 6 | 20 | 12 |
| Crawford | | 3 | 2 | 3 | 1 | 3 | 2 |
| Dane | 7 | 33 | 25 | 41 | 32 | 38 | 34 |
| Dodge | 2 | 8 | 13 | 8 | 20 | 12 | 12 |
| Door | | 2 | 6 | 7 | 1 | 4 | 4 |
| Douglas | 1 | 4 | 4 | 3 | 2 | 2 | 3 |
| Dunn | 2 | 7 | 5 | 9 | 8 | 11 | 8 |
| Eau Claire | 1 | 10 | 2 | 5 | 4 | 10 | 6 |
| Florence | | 4 | 0 | 3 | 1 | 0 | 2 |
| Fond du Lac | 2 | 9 | 8 | 16 | 11 | 10 | 11 |
| Forest | | | 1 | 2 | 2 | 2 | 2 |
| Grant | | 4 | 10 | 5 | 8 | 11 | 8 |
| Green | | 3 | 4 | 3 | 6 | 6 | 4 |
| Green Lake | | 3 | 3 | 0 | 0 | 1 | 1 |
| Iowa | | 5 | 7 | 3 | 3 | 2 | 4 |
| Iron | | 1 | 4 | 2 | 1 | 3 | 2 |
| Jackson | | 1 | 4 | 6 | 6 | 3 | 4 |
| Jefferson | 3 | 9 | 6 | 13 | 13 | 7 | 10 |
| Juneau | 2 | 6 | 7 | 11 | 6 | 9 | 8 |
| Kenosha | 2 | 21 | 15 | 16 | 18 | 18 | 18 |
| Kewaunee | | 5 | 1 | 0 | 3 | 2 | 2 |
| La Crosse | | 4 | 5 | 9 | 12 | 6 | 7 |
| Lafayette | | 1 | 0 | 3 | 5 | 2 | 2 |
| Langlade | | 3 | 2 | 2 | 2 | 2 | 2 |
| Lincoln | | 7 | 4 | 2 | 5 | 2 | 4 |
| Manitowoc | 1 | 10 | 15 | 8 | 6 | 3 | 8 |
| Marathon | | 8 | 14 | 9 | 15 | 9 | 11 |
| Marinette | 1 | 3 | 7 | 10 | 2 | 5 | 5 |
| Marquette | 1 | 4 | 1 | 2 | 6 | 2 | 3 |
| Menominee | | 1 | 1 | 0 | 0 | 0 | 0 |
| Milwaukee | 7 | 103 | 74 | 68 | 86 | 73 | 81 |
| Monroe | 1 | 5 | 6 | 6 | 6 | 9 | 6 |
| Oconto | 1 | 9 | 8 | 7 | 8 | 7 | 8 |
| Oneida | 1 | 6 | 7 | 6 | 3 | 5 | 5 |
| Outagamie | 2 | 9 | 16 | 12 | 20 | 14 | 14 |
| Ozaukee | | 6 | 11 | 5 | 5 | 7 | 7 |
| Pepin | | 3 | 0 | 2 | 0 | 1 | 1 |
| Pierce | 1 | 8 | 5 | 2 | 7 | 10 | 6 |
| Polk | | 14 | 11 | 10 | 7 | 10 | 10 |
| Portage | 2 | 4 | 3 | 8 | 5 | 2 | 4 |
| Price | | 3 | 3 | 2 | 1 | 3 | 2 |
| Racine | 1 | 23 | 17 | 20 | 11 | 17 | 18 |
| Richland | | 2 | 0 | 1 | 1 | 4 | 2 |
| Rock | 2 | 25 | 23 | 31 | 13 | 23 | 23 |
| Rusk | | 3 | 4 | 2 | 2 | 0 | 2 |
| Saint Croix | | 9 | 13 | 8 | 7 | 7 | 9 |
| Sauk | 1 | 9 | 9 | 12 | 11 | 11 | 10 |
| Sawyer | | 11 | 2 | 1 | 1 | 3 | 4 |
| Shawano | 1 | 5 | 5 | 4 | 16 | 8 | 8 |
| Sheboygan | | 4 | 11 | 9 | 11 | 10 | 9 |
| Taylor | | 1 | 3 | 5 | 1 | 6 | 3 |
| Trempealeau | 1 | 6 | 1 | 2 | 3 | 0 | 2 |
| Vernon | | 1 | 1 | 4 | 3 | 4 | 3 |
| Vilas | | 1 | 4 | 2 | 2 | 11 | 4 |
| Walworth | | 13 | 15 | 7 | 21 | 23 | 16 |
| Washburn | | 2 | 4 | 0 | 3 | 1 | 2 |
| Washington | 1 | 4 | 12 | 10 | 7 | 10 | 9 |
| Waukesha | 2 | 17 | 18 | 25 | 25 | 27 | 22 |
| Waupaca | 3 | 7 | 11 | 6 | 8 | 5 | 7 |
| Waushara | 2 | 7 | 2 | 5 | 7 | 3 | 5 |
| Winnebago | | 11 | 11 | 13 | 9 | 10 | 11 |
| Wood | | 16 | 10 | 5 | 11 | 6 | 10 |
*2020 and 2019 data are preliminary
Data source: WisDOT Crash Records database
Fatalities by month
Weekly fatality report