| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| WI-01 | Les AspinDEM | DEM | 208,176 | 76.2% | D+52.3 |
| WI-02 | DEM | 258,977 | 58.5% | D+17.0 | |
| WI-03 | REP | 230,467 | 68.3% | R+36.7 | |
| WI-04 | DEM | 177,892 | 99.7% | D+99.7 | |
| WI-05 | DEM | 219,179 | 64.1% | D+28.4 | |
| WI-06 | REP | 223,495 | 74.2% | R+48.5 | |
| WI-07 | David R ObeyDEM | DEM | 230,179 | 61.8% | D+24.4 |
| WI-08 | Toby RothREP | REP | 240,013 | 69.7% | R+39.4 |
| WI-09 | REP | 247,104 | 74.9% | R+49.8 |