| District | Winner | Runner-Up | Other | Total Votes | |||||
|---|---|---|---|---|---|---|---|---|---|
| District 01 | Paul Ryan* (R) | 177,612 | 66.6% | Jeffrey Thomas (D) | 88,885 | 33.3% | 294 | 0.1% | 266,791 |
| District 02 | Tammy Baldwin* (D) | 163,534 | 51.4% | John Sharpless (R) | 154,632 | 48.6% | 214 | 0.1% | 318,380 |
| District 03 | Ron Kind* (D) | 173,505 | 63.7% | Susan Tully (R) | 97,741 | 35.9% | 966 | 0.4% | 272,212 |
| District 04 | Gerald Kleczka* (D) | 163,622 | 60.8% | Tim Riener (R) | 101,811 | 37.8% | 3,832 [+] | 1.4% | 269,265 |
| District 05 | Tom Barrett* (D) | 173,893 | 77.7% | Jonathan Smith (R) | 49,296 | 22.0% | 663 | 0.3% | 223,852 |
| District 06 | Tom Petri* (R) | 179,205 | 65.0% | Dan Flaherty (D) | 96,125 | 34.9% | 275 | 0.1% | 275,605 |
| District 07 | David Obey* (D) | 173,007 | 63.3% | Sean Cronin (R) | 100,264 | 36.7% | 189 | 0.1% | 273,460 |
| District 08 | Mark Green* (R) | 211,388 | 74.6% | Dean Reich (D) | 71,575 | 25.3% | 331 | 0.1% | 283,294 |
| District 09 | James Sensenbrenner* (R) | 239,498 | 74.0% | Mike Clawson (D) | 83,720 | 25.9% | 237 | 0.1% | 323,455 |
| Total R vote: 1,311,447 (52.3%) Total D vote: 1,187,866 (47.4%) | |||||||||