| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| WI-01 | Les AspinDEM | DEM | 141,585 | 54.5% | D+9.0 |
| WI-02 | DEM | 172,762 | 57.7% | D+16.3 | |
| WI-03 | DEM | 153,412 | 62.8% | D+25.6 | |
| WI-04 | DEM | 153,703 | 66.1% | D+32.2 | |
| WI-05 | DEM | 116,420 | 73.1% | D+47.1 | |
| WI-06 | REP | 164,817 | 69.6% | R+40.0 | |
| WI-07 | David R ObeyDEM | DEM | 178,304 | 62.2% | D+25.3 |
| WI-08 | Toby RothREP | REP | 175,791 | 57.9% | R+15.9 |
| WI-09 | REP | 193,688 | 61.1% | R+22.3 |