| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| WI-01 | Les AspinDEM | DEM | 256,280 | 57.5% | D+16.8 |
| WI-02 | Scott L KlugREP | REP | 292,898 | 62.6% | R+25.6 |
| WI-03 | REP | 260,335 | 56.4% | R+14.7 | |
| WI-04 | DEM | 263,803 | 65.8% | D+33.6 | |
| WI-05 | DEM | 234,176 | 69.3% | D+39.0 | |
| WI-06 | REP | 272,137 | 52.9% | R+5.8 | |
| WI-07 | David R ObeyDEM | DEM | 257,982 | 64.4% | D+28.9 |
| WI-08 | Toby RothREP | REP | 273,532 | 70.1% | R+40.2 |
| WI-09 | REP | 276,787 | 69.7% | R+41.7 |